prototypes/Complexity over Time (easier way maybe).ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# The idea\n",
    "\n",
    "In my previous blog post, we got to know the idea of \"indentation-based complexity\". We took a static view on the Linux kernel to spot the most complex areas.\n",
    "\n",
    "This time, we wanna track the evolution of the indentation-based complexity of a software system over time. We are especially interested in it's correlation between the lines of code. Because if we have a more or less stable development of the lines of codes of our system, but an increasing number of indentation per source code file, we surely got a complexity problem.\n",
    "\n",
    "Again, this analysis is higly inspired by [Adam Tornhill's book \"Software Design X-Ray\"](https://pragprog.com/book/atevol/software-design-x-rays)\n",
    ", which I currently always recommend if you want to get a deep dive into software data analysis."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# The data\n",
    "For the calculation of the evolution of our software system, we can use data from the version control system. In our case, we can get all changes to Java source code files with Git. We just need so say the right magic words, which is\n",
    "\n",
    "```git log -p -- *.java```\n",
    "\n",
    "This gives us data like the following:\n",
    "\n",
    "```\n",
    "commit e5254156eca3a8461fa758f17dc5fae27e738ab5\n",
    "Author: Antoine Rey <antoine.rey@gmail.com>\n",
    "Date:   Fri Aug 19 18:54:56 2016 +0200\n",
    "\n",
    "    Convert Controler's integration test to unit test\n",
    "\n",
    "diff --git a/src/test/java/org/springframework/samples/petclinic \n",
    "/web/CrashControllerTests.java b/src/test/java/org/springframework/samples/petclinic/web/CrashControllerTests.java\n",
    "index ee83b8a..a83255b 100644\n",
    "--- a/src/test/java/org/springframework/samples/petclinic/web/CrashControllerTests.java\n",
    "+++ b/src/test/java/org/springframework/samples/petclinic/web/CrashControllerTests.java\n",
    "@@ -1,8 +1,5 @@\n",
    " package org.springframework.samples.petclinic.web;\n",
    " \n",
    "-import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;\n",
    "-import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;\n",
    "-\n",
    " import org.junit.Before;\n",
    " import org.junit.Test;\n",
    " import org.junit.runner.RunWith;\n",
    "```\n",
    "\n",
    "We have the\n",
    "* commit sha  \n",
    "```    commit e5254156eca3a8461fa758f17dc5fae27e738ab5```\n",
    "* author's name  \n",
    "```    Author: Antoine Rey <antoine.rey@gmail.com>```\n",
    "* date of the commit  \n",
    "```    Date:   Fri Aug 19 18:54:56 2016 +0200```\n",
    "* commit message  \n",
    "```    Convert Controler's integration test to unit test```\n",
    "* names of the files that changes (after and before)  \n",
    "```   diff --git a/src/test/java/org/springframework/samples/petclinic \n",
    "/web/CrashControllerTests.java b/src/test/java/org/springframework/samples/petclinic/web/CrashControllerTests.java```\n",
    "* the extended index header  \n",
    "```   index ee83b8a..a83255b 100644```  \n",
    "```   --- a/src/test/java/org/springframework/samples/petclinic/web/CrashControllerTests.java\n",
    "+++ b/src/test/java/org/springframework/samples/petclinic/web/CrashControllerTests.java``` \n",
    "* and the full file diff where we can see additions or modifications (`+`) and deletions (`-`)   \n",
    "```\n",
    "    package org.springframework.samples.petclinic.web;\n",
    " \n",
    "    -import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;\n",
    "    -import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;     \n",
    "    -\n",
    "     import org.junit.Before;\n",
    "```\n",
    "We \"just\" have to get this data into our favorite data analysis framework, which is, of course, Pandas :-). We can actually do that! Let's see how!"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Advanced data wangling\n",
    "Reading in such a semi-structured data is a little challenge. But we can do it with some tricks. First, we read in the whole Git diff history by standard means, using `read_csv` and the separator `\\n` to get one row per line. We make sure to give the columns a nice name as well."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>raw</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>commit e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>Author: Antoine Rey &lt;antoine.rey@gmail.com&gt;</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>Date:   Fri Aug 19 18:54:56 2016 +0200</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>Convert Controler's integration test to un...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>diff --git a/src/test/java/org/springframework...</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "                                                 raw\n",
       "0    commit e5254156eca3a8461fa758f17dc5fae27e738ab5\n",
       "1        Author: Antoine Rey <antoine.rey@gmail.com>\n",
       "2             Date:   Fri Aug 19 18:54:56 2016 +0200\n",
       "3      Convert Controler's integration test to un...\n",
       "4  diff --git a/src/test/java/org/springframework..."
      ]
     },
     "execution_count": 19,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import pandas as pd\n",
    "\n",
    "diff_raw = pd.read_csv(\n",
    "    \"../../buschmais-spring-petclinic_fork/git_diff.log\",\n",
    "    sep=\"\\n\",\n",
    "    names=[\"raw\"])\n",
    "diff_raw.head(5)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>raw</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>commit e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>288</th>\n",
       "      <td>commit 1a6572d1ac0c7659d9243405074f3f19f9a93328</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>409</th>\n",
       "      <td>commit 078bdc6cfbada99413041d859fdeb3d63685c40b</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>446</th>\n",
       "      <td>commit 4c722465d8091cfa29b54674138c24c199259172</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>525</th>\n",
       "      <td>commit ca755be44a2844e10876b8e38e68b9adf736b486</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "                                                 raw\n",
       "0    commit e5254156eca3a8461fa758f17dc5fae27e738ab5\n",
       "288  commit 1a6572d1ac0c7659d9243405074f3f19f9a93328\n",
       "409  commit 078bdc6cfbada99413041d859fdeb3d63685c40b\n",
       "446  commit 4c722465d8091cfa29b54674138c24c199259172\n",
       "525  commit ca755be44a2844e10876b8e38e68b9adf736b486"
      ]
     },
     "execution_count": 20,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "diff_raw[diff_raw.raw.str.startswith(\"commit\")].head()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "The output is the commit data that I've describe above where each in line the text file represents one row in the DataFrame (without blank lines)."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Cleansing\n",
    "We skip all the data we don't need for sure. Especially the \"extended index header\" with the two lines that being with `+++` and `---` are candidates to mix with the real diff data that begins also with a `+` or a `-`. Furtunately, we can identify these rows easily: These are the rows that begin with the row that starts with `index`. Using the `shift` operation starting at the row with `index`, we can get rid of all those lines."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>raw</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>commit e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>Author: Antoine Rey &lt;antoine.rey@gmail.com&gt;</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>Date:   Fri Aug 19 18:54:56 2016 +0200</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>Convert Controler's integration test to un...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>diff --git a/src/test/java/org/springframework...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>8</th>\n",
       "      <td>@@ -1,8 +1,5 @@</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>9</th>\n",
       "      <td>package org.springframework.samples.petclinic...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>10</th>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>11</th>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>12</th>\n",
       "      <td>-</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "                                                  raw\n",
       "0     commit e5254156eca3a8461fa758f17dc5fae27e738ab5\n",
       "1         Author: Antoine Rey <antoine.rey@gmail.com>\n",
       "2              Date:   Fri Aug 19 18:54:56 2016 +0200\n",
       "3       Convert Controler's integration test to un...\n",
       "4   diff --git a/src/test/java/org/springframework...\n",
       "8                                     @@ -1,8 +1,5 @@\n",
       "9    package org.springframework.samples.petclinic...\n",
       "10  -import static org.springframework.test.web.se...\n",
       "11  -import static org.springframework.test.web.se...\n",
       "12                                                  -"
      ]
     },
     "execution_count": 21,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "index_row = diff_raw.raw.str.startswith(\"index \")\n",
    "ignored_diff_rows = (index_row.shift(1) | index_row.shift(2))\n",
    "diff_raw = diff_raw[~(index_row | ignored_diff_rows)]\n",
    "diff_raw.head(10)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Extracting metadata"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Next, we extract some metadata of a commit. We can identify the different entries by using a regular expression that looks up a specific key word for each line. We extract each individual information into a new Series/column because we need it for each change line during the software's history. "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>raw</th>\n",
       "      <th>commit</th>\n",
       "      <th>timestamp</th>\n",
       "      <th>path</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>commit e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
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       "      <td>NaT</td>\n",
       "      <td>NaN</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>Author: Antoine Rey &lt;antoine.rey@gmail.com&gt;</td>\n",
       "      <td>NaN</td>\n",
       "      <td>NaT</td>\n",
       "      <td>NaN</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>Date:   Fri Aug 19 18:54:56 2016 +0200</td>\n",
       "      <td>NaN</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>NaN</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>Convert Controler's integration test to un...</td>\n",
       "      <td>NaN</td>\n",
       "      <td>NaT</td>\n",
       "      <td>NaN</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>diff --git a/src/test/java/org/springframework...</td>\n",
       "      <td>NaN</td>\n",
       "      <td>NaT</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "                                                 raw  \\\n",
       "0    commit e5254156eca3a8461fa758f17dc5fae27e738ab5   \n",
       "1        Author: Antoine Rey <antoine.rey@gmail.com>   \n",
       "2             Date:   Fri Aug 19 18:54:56 2016 +0200   \n",
       "3      Convert Controler's integration test to un...   \n",
       "4  diff --git a/src/test/java/org/springframework...   \n",
       "\n",
       "                                     commit           timestamp  \\\n",
       "0  e5254156eca3a8461fa758f17dc5fae27e738ab5                 NaT   \n",
       "1                                       NaN                 NaT   \n",
       "2                                       NaN 2016-08-19 16:54:56   \n",
       "3                                       NaN                 NaT   \n",
       "4                                       NaN                 NaT   \n",
       "\n",
       "                                                path  \n",
       "0                                                NaN  \n",
       "1                                                NaN  \n",
       "2                                                NaN  \n",
       "3                                                NaN  \n",
       "4  src/test/java/org/springframework/samples/petc...  "
      ]
     },
     "execution_count": 22,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "diff_raw['commit'] = diff_raw.raw.str.split(\"^commit \").str[1]\n",
    "diff_raw['timestamp'] = pd.to_datetime(diff_raw.raw.str.split(\"^Date: \").str[1])\n",
    "diff_raw['path'] = diff_raw.raw.str.extract(\"^diff --git.* b/(.*)\", expand=True)[0]\n",
    "diff_raw.head()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "To assign each commit's metadata to the remaining rows, we forward fill those rows with the metadata by using the `fillna` method. "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "metadata": {},
   "outputs": [
    {
     "data": {
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       "<div>\n",
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       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>raw</th>\n",
       "      <th>commit</th>\n",
       "      <th>timestamp</th>\n",
       "      <th>path</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>commit e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
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       "      <td>NaT</td>\n",
       "      <td>NaN</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>Author: Antoine Rey &lt;antoine.rey@gmail.com&gt;</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>NaT</td>\n",
       "      <td>NaN</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>Date:   Fri Aug 19 18:54:56 2016 +0200</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>NaN</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>Convert Controler's integration test to un...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>NaN</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>diff --git a/src/test/java/org/springframework...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>8</th>\n",
       "      <td>@@ -1,8 +1,5 @@</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>9</th>\n",
       "      <td>package org.springframework.samples.petclinic...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>10</th>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "                                                  raw  \\\n",
       "0     commit e5254156eca3a8461fa758f17dc5fae27e738ab5   \n",
       "1         Author: Antoine Rey <antoine.rey@gmail.com>   \n",
       "2              Date:   Fri Aug 19 18:54:56 2016 +0200   \n",
       "3       Convert Controler's integration test to un...   \n",
       "4   diff --git a/src/test/java/org/springframework...   \n",
       "8                                     @@ -1,8 +1,5 @@   \n",
       "9    package org.springframework.samples.petclinic...   \n",
       "10  -import static org.springframework.test.web.se...   \n",
       "\n",
       "                                      commit           timestamp  \\\n",
       "0   e5254156eca3a8461fa758f17dc5fae27e738ab5                 NaT   \n",
       "1   e5254156eca3a8461fa758f17dc5fae27e738ab5                 NaT   \n",
       "2   e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "3   e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "4   e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "8   e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "9   e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "10  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "\n",
       "                                                 path  \n",
       "0                                                 NaN  \n",
       "1                                                 NaN  \n",
       "2                                                 NaN  \n",
       "3                                                 NaN  \n",
       "4   src/test/java/org/springframework/samples/petc...  \n",
       "8   src/test/java/org/springframework/samples/petc...  \n",
       "9   src/test/java/org/springframework/samples/petc...  \n",
       "10  src/test/java/org/springframework/samples/petc...  "
      ]
     },
     "execution_count": 23,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "diff_raw = diff_raw.fillna(method='ffill')\n",
    "diff_raw.head(8)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Identifying source code lines\n",
    "We can now focus on the changed source code lines. We can identify "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "metadata": {},
   "outputs": [
    {
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       "      <th>timestamp</th>\n",
       "      <th>path</th>\n",
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       "      <th>0</th>\n",
       "      <td>commit e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
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       "      <td>NaT</td>\n",
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       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>Author: Antoine Rey &lt;antoine.rey@gmail.com&gt;</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>NaT</td>\n",
       "      <td>NaN</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>Date:   Fri Aug 19 18:54:56 2016 +0200</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>NaN</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>Convert Controler's integration test to un...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>NaN</td>\n",
       "      <td>3</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>diff --git a/src/test/java/org/springframework...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "                                                 raw  \\\n",
       "0    commit e5254156eca3a8461fa758f17dc5fae27e738ab5   \n",
       "1        Author: Antoine Rey <antoine.rey@gmail.com>   \n",
       "2             Date:   Fri Aug 19 18:54:56 2016 +0200   \n",
       "3      Convert Controler's integration test to un...   \n",
       "4  diff --git a/src/test/java/org/springframework...   \n",
       "\n",
       "                                     commit           timestamp  \\\n",
       "0  e5254156eca3a8461fa758f17dc5fae27e738ab5                 NaT   \n",
       "1  e5254156eca3a8461fa758f17dc5fae27e738ab5                 NaT   \n",
       "2  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "3  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "4  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "\n",
       "                                                path  i  \n",
       "0                                                NaN  0  \n",
       "1                                                NaN  0  \n",
       "2                                                NaN  0  \n",
       "3                                                NaN  3  \n",
       "4  src/test/java/org/springframework/samples/petc...  0  "
      ]
     },
     "execution_count": 24,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "diff_raw[\"i\"] = diff_raw.raw.str[1:].str.len() - diff_raw.raw.str[1:].str.lstrip().str.len()\n",
    "diff_raw.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "91.6 ms ± 2.41 ms per loop (mean ± std. dev. of 7 runs, 10 loops each)\n"
     ]
    }
   ],
   "source": [
    "%%timeit\n",
    "diff_raw['added'] = diff_raw.raw.str.extract(\"^\\+( *).*$\", expand=True)[0].str.len()\n",
    "diff_raw['deleted'] = diff_raw.raw.str.extract(\"^-( *).*$\", expand=True)[0].str.len()\n",
    "diff_raw.head()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "For our later indentation-based complexity calculation, we have to make sure that each line"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 26,
   "metadata": {},
   "outputs": [
    {
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       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>Author: Antoine Rey &lt;antoine.rey@gmail.com&gt;</td>\n",
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       "      <td>Author: Antoine Rey &lt;antoine.rey@gmail.com&gt;</td>\n",
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       "      <td>Convert Controler's integration test to un...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>diff --git a/src/test/java/org/springframework...</td>\n",
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       "</table>\n",
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      "text/plain": [
       "                                                 raw  \\\n",
       "0    commit e5254156eca3a8461fa758f17dc5fae27e738ab5   \n",
       "1        Author: Antoine Rey <antoine.rey@gmail.com>   \n",
       "2             Date:   Fri Aug 19 18:54:56 2016 +0200   \n",
       "3      Convert Controler's integration test to un...   \n",
       "4  diff --git a/src/test/java/org/springframework...   \n",
       "\n",
       "                                     commit           timestamp  \\\n",
       "0  e5254156eca3a8461fa758f17dc5fae27e738ab5                 NaT   \n",
       "1  e5254156eca3a8461fa758f17dc5fae27e738ab5                 NaT   \n",
       "2  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "3  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "4  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "\n",
       "                                                path  i  added  deleted  \\\n",
       "0                                                NaN  0    NaN      NaN   \n",
       "1                                                NaN  0    NaN      NaN   \n",
       "2                                                NaN  0    NaN      NaN   \n",
       "3                                                NaN  3    NaN      NaN   \n",
       "4  src/test/java/org/springframework/samples/petc...  0    NaN      NaN   \n",
       "\n",
       "                                                line  \n",
       "0    commit e5254156eca3a8461fa758f17dc5fae27e738ab5  \n",
       "1        Author: Antoine Rey <antoine.rey@gmail.com>  \n",
       "2             Date:   Fri Aug 19 18:54:56 2016 +0200  \n",
       "3      Convert Controler's integration test to un...  \n",
       "4  diff --git a/src/test/java/org/springframework...  "
      ]
     },
     "execution_count": 26,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "diff_raw['line'] = diff_raw.raw.str.replace(\"\\t\", \"    \")\n",
    "diff_raw.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 27,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
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       "    .dataframe tbody tr th:only-of-type {\n",
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       "\n",
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       "\n",
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       "</style>\n",
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       "  <tbody>\n",
       "    <tr>\n",
       "      <th>10</th>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
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       "      <td>-import static org.springframework.test.web.se...</td>\n",
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       "    <tr>\n",
       "      <th>11</th>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
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       "      <td>NaN</td>\n",
       "      <td>0.0</td>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
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       "    <tr>\n",
       "      <th>12</th>\n",
       "      <td>-</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
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       "      <td>0.0</td>\n",
       "      <td>-</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>19</th>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>NaN</td>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>20</th>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>NaN</td>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "                                                  raw  \\\n",
       "10  -import static org.springframework.test.web.se...   \n",
       "11  -import static org.springframework.test.web.se...   \n",
       "12                                                  -   \n",
       "19  +import static org.springframework.test.web.se...   \n",
       "20  +import static org.springframework.test.web.se...   \n",
       "\n",
       "                                      commit           timestamp  \\\n",
       "10  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "11  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "12  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "19  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "20  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "\n",
       "                                                 path  i  added  deleted  \\\n",
       "10  src/test/java/org/springframework/samples/petc...  0    NaN      0.0   \n",
       "11  src/test/java/org/springframework/samples/petc...  0    NaN      0.0   \n",
       "12  src/test/java/org/springframework/samples/petc...  0    NaN      0.0   \n",
       "19  src/test/java/org/springframework/samples/petc...  0    0.0      NaN   \n",
       "20  src/test/java/org/springframework/samples/petc...  0    0.0      NaN   \n",
       "\n",
       "                                                 line  \n",
       "10  -import static org.springframework.test.web.se...  \n",
       "11  -import static org.springframework.test.web.se...  \n",
       "12                                                  -  \n",
       "19  +import static org.springframework.test.web.se...  \n",
       "20  +import static org.springframework.test.web.se...  "
      ]
     },
     "execution_count": 27,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "diff = \\\n",
    "    diff_raw[\n",
    "        (~diff_raw['added'].isnull()) | \n",
    "             (~diff_raw['deleted'].isnull())].copy()\n",
    "diff.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "metadata": {},
   "outputs": [
    {
     "data": {
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       "      <th>line</th>\n",
       "      <th>is_comment</th>\n",
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       "      <th>is_source</th>\n",
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       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>10</th>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
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       "      <td>0</td>\n",
       "      <td>NaN</td>\n",
       "      <td>0.0</td>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>False</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>11</th>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>NaN</td>\n",
       "      <td>0.0</td>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>False</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>12</th>\n",
       "      <td>-</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>NaN</td>\n",
       "      <td>0.0</td>\n",
       "      <td>-</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "      <td>False</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>19</th>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>NaN</td>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "      <td>False</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>20</th>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>NaN</td>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "      <td>False</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "                                                  raw  \\\n",
       "10  -import static org.springframework.test.web.se...   \n",
       "11  -import static org.springframework.test.web.se...   \n",
       "12                                                  -   \n",
       "19  +import static org.springframework.test.web.se...   \n",
       "20  +import static org.springframework.test.web.se...   \n",
       "\n",
       "                                      commit           timestamp  \\\n",
       "10  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "11  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "12  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "19  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "20  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "\n",
       "                                                 path  i  added  deleted  \\\n",
       "10  src/test/java/org/springframework/samples/petc...  0    NaN      0.0   \n",
       "11  src/test/java/org/springframework/samples/petc...  0    NaN      0.0   \n",
       "12  src/test/java/org/springframework/samples/petc...  0    NaN      0.0   \n",
       "19  src/test/java/org/springframework/samples/petc...  0    0.0      NaN   \n",
       "20  src/test/java/org/springframework/samples/petc...  0    0.0      NaN   \n",
       "\n",
       "                                                 line  is_comment  is_empty  \\\n",
       "10  -import static org.springframework.test.web.se...       False     False   \n",
       "11  -import static org.springframework.test.web.se...       False     False   \n",
       "12                                                  -       False      True   \n",
       "19  +import static org.springframework.test.web.se...       False     False   \n",
       "20  +import static org.springframework.test.web.se...       False     False   \n",
       "\n",
       "    is_source  \n",
       "10       True  \n",
       "11       True  \n",
       "12      False  \n",
       "19       True  \n",
       "20       True  "
      ]
     },
     "execution_count": 28,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "diff['is_comment'] = diff.line.str[1:].str.match(r' *(//|/*\\*).*')\n",
    "diff['is_empty'] = diff.line.str[1:].str.replace(\" \",\"\").str.len() == 0\n",
    "diff['is_source'] = ~(diff['is_empty'] | diff['is_comment'])\n",
    "diff.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "+    11483\n",
       "-     7525\n",
       "Name: raw, dtype: int64"
      ]
     },
     "execution_count": 29,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "diff.raw.str[0].value_counts()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 30,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>raw</th>\n",
       "      <th>commit</th>\n",
       "      <th>timestamp</th>\n",
       "      <th>path</th>\n",
       "      <th>i</th>\n",
       "      <th>added</th>\n",
       "      <th>deleted</th>\n",
       "      <th>line</th>\n",
       "      <th>is_comment</th>\n",
       "      <th>is_empty</th>\n",
       "      <th>is_source</th>\n",
       "      <th>lines_added</th>\n",
       "      <th>lines_deleted</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>10</th>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>NaN</td>\n",
       "      <td>0.0</td>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>False</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>11</th>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>NaN</td>\n",
       "      <td>0.0</td>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>False</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>12</th>\n",
       "      <td>-</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>NaN</td>\n",
       "      <td>0.0</td>\n",
       "      <td>-</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "      <td>False</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>19</th>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>NaN</td>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "      <td>False</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>20</th>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>NaN</td>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "      <td>False</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "                                                  raw  \\\n",
       "10  -import static org.springframework.test.web.se...   \n",
       "11  -import static org.springframework.test.web.se...   \n",
       "12                                                  -   \n",
       "19  +import static org.springframework.test.web.se...   \n",
       "20  +import static org.springframework.test.web.se...   \n",
       "\n",
       "                                      commit           timestamp  \\\n",
       "10  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "11  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "12  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "19  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "20  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "\n",
       "                                                 path  i  added  deleted  \\\n",
       "10  src/test/java/org/springframework/samples/petc...  0    NaN      0.0   \n",
       "11  src/test/java/org/springframework/samples/petc...  0    NaN      0.0   \n",
       "12  src/test/java/org/springframework/samples/petc...  0    NaN      0.0   \n",
       "19  src/test/java/org/springframework/samples/petc...  0    0.0      NaN   \n",
       "20  src/test/java/org/springframework/samples/petc...  0    0.0      NaN   \n",
       "\n",
       "                                                 line  is_comment  is_empty  \\\n",
       "10  -import static org.springframework.test.web.se...       False     False   \n",
       "11  -import static org.springframework.test.web.se...       False     False   \n",
       "12                                                  -       False      True   \n",
       "19  +import static org.springframework.test.web.se...       False     False   \n",
       "20  +import static org.springframework.test.web.se...       False     False   \n",
       "\n",
       "    is_source  lines_added  lines_deleted  \n",
       "10       True            0              1  \n",
       "11       True            0              1  \n",
       "12      False            0              1  \n",
       "19       True            1              0  \n",
       "20       True            1              0  "
      ]
     },
     "execution_count": 30,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "diff['lines_added'] = (~diff.added.isnull()).astype('int')\n",
    "diff['lines_deleted'] = (~diff.deleted.isnull()).astype('int')\n",
    "diff.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 31,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>raw</th>\n",
       "      <th>commit</th>\n",
       "      <th>timestamp</th>\n",
       "      <th>path</th>\n",
       "      <th>i</th>\n",
       "      <th>added</th>\n",
       "      <th>deleted</th>\n",
       "      <th>line</th>\n",
       "      <th>is_comment</th>\n",
       "      <th>is_empty</th>\n",
       "      <th>is_source</th>\n",
       "      <th>lines_added</th>\n",
       "      <th>lines_deleted</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>10</th>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>False</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>11</th>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>-import static org.springframework.test.web.se...</td>\n",
       "      <td>False</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>12</th>\n",
       "      <td>-</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>-</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "      <td>False</td>\n",
       "      <td>0</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>19</th>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "      <td>False</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>20</th>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "      <td>e5254156eca3a8461fa758f17dc5fae27e738ab5</td>\n",
       "      <td>2016-08-19 16:54:56</td>\n",
       "      <td>src/test/java/org/springframework/samples/petc...</td>\n",
       "      <td>0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>+import static org.springframework.test.web.se...</td>\n",
       "      <td>False</td>\n",
       "      <td>False</td>\n",
       "      <td>True</td>\n",
       "      <td>1</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "                                                  raw  \\\n",
       "10  -import static org.springframework.test.web.se...   \n",
       "11  -import static org.springframework.test.web.se...   \n",
       "12                                                  -   \n",
       "19  +import static org.springframework.test.web.se...   \n",
       "20  +import static org.springframework.test.web.se...   \n",
       "\n",
       "                                      commit           timestamp  \\\n",
       "10  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "11  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "12  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "19  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "20  e5254156eca3a8461fa758f17dc5fae27e738ab5 2016-08-19 16:54:56   \n",
       "\n",
       "                                                 path  i  added  deleted  \\\n",
       "10  src/test/java/org/springframework/samples/petc...  0    0.0      0.0   \n",
       "11  src/test/java/org/springframework/samples/petc...  0    0.0      0.0   \n",
       "12  src/test/java/org/springframework/samples/petc...  0    0.0      0.0   \n",
       "19  src/test/java/org/springframework/samples/petc...  0    0.0      0.0   \n",
       "20  src/test/java/org/springframework/samples/petc...  0    0.0      0.0   \n",
       "\n",
       "                                                 line  is_comment  is_empty  \\\n",
       "10  -import static org.springframework.test.web.se...       False     False   \n",
       "11  -import static org.springframework.test.web.se...       False     False   \n",
       "12                                                  -       False      True   \n",
       "19  +import static org.springframework.test.web.se...       False     False   \n",
       "20  +import static org.springframework.test.web.se...       False     False   \n",
       "\n",
       "    is_source  lines_added  lines_deleted  \n",
       "10       True            0              1  \n",
       "11       True            0              1  \n",
       "12      False            0              1  \n",
       "19       True            1              0  \n",
       "20       True            1              0  "
      ]
     },
     "execution_count": 31,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "diff = diff.fillna(0)\n",
    "#diff.to_excel(\"temp.xlsx\")\n",
    "diff.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
       "    .dataframe tbody tr th:only-of-type {\n",
       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
       "        vertical-align: top;\n",
       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>i</th>\n",
       "      <th>added</th>\n",
       "      <th>deleted</th>\n",
       "      <th>is_comment</th>\n",
       "      <th>is_empty</th>\n",
       "      <th>is_source</th>\n",
       "      <th>lines_added</th>\n",
       "      <th>lines_deleted</th>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>timestamp</th>\n",
       "      <th></th>\n",
       "      <th></th>\n",
       "      <th></th>\n",
       "      <th></th>\n",
       "      <th></th>\n",
       "      <th></th>\n",
       "      <th></th>\n",
       "      <th></th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>2009-05-05</th>\n",
       "      <td>164</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>87.0</td>\n",
       "      <td>194.0</td>\n",
       "      <td>277</td>\n",
       "      <td>4</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2009-05-06</th>\n",
       "      <td>128</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>2.0</td>\n",
       "      <td>42.0</td>\n",
       "      <td>135.0</td>\n",
       "      <td>136</td>\n",
       "      <td>43</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2009-05-07</th>\n",
       "      <td>165</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>1.0</td>\n",
       "      <td>60.0</td>\n",
       "      <td>138.0</td>\n",
       "      <td>189</td>\n",
       "      <td>10</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2009-05-08</th>\n",
       "      <td>0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2009-05-09</th>\n",
       "      <td>0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0.0</td>\n",
       "      <td>0</td>\n",
       "      <td>0</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "              i  added  deleted  is_comment  is_empty  is_source  lines_added  \\\n",
       "timestamp                                                                       \n",
       "2009-05-05  164    0.0      0.0         0.0      87.0      194.0          277   \n",
       "2009-05-06  128    0.0      0.0         2.0      42.0      135.0          136   \n",
       "2009-05-07  165    0.0      0.0         1.0      60.0      138.0          189   \n",
       "2009-05-08    0    0.0      0.0         0.0       0.0        0.0            0   \n",
       "2009-05-09    0    0.0      0.0         0.0       0.0        0.0            0   \n",
       "\n",
       "            lines_deleted  \n",
       "timestamp                  \n",
       "2009-05-05              4  \n",
       "2009-05-06             43  \n",
       "2009-05-07             10  \n",
       "2009-05-08              0  \n",
       "2009-05-09              0  "
      ]
     },
     "execution_count": 32,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "commits_per_day = diff.set_index('timestamp').resample(\"D\").sum()\n",
    "commits_per_day.head()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 33,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<matplotlib.axes._subplots.AxesSubplot at 0x15bd2fe7b00>"
      ]
     },
     "execution_count": 33,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "data": {
      "image/png": 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\n",
      "text/plain": [
       "<matplotlib.figure.Figure at 0x15bd2fe7400>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "%matplotlib inline\n",
    "commits_per_day.cumsum().plot()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 34,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<matplotlib.axes._subplots.AxesSubplot at 0x15bd3287128>"
      ]
     },
     "execution_count": 34,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "data": {
      "image/png": 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\n",
      "text/plain": [
       "<matplotlib.figure.Figure at 0x15bd3293128>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "(commits_per_day.added - commits_per_day.deleted).cumsum().plot()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 35,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<matplotlib.axes._subplots.AxesSubplot at 0x15bd33ce198>"
      ]
     },
     "execution_count": 35,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "data": {
      "image/png": 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\n",
      "text/plain": [
       "<matplotlib.figure.Figure at 0x15bd33a8d68>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "(commits_per_day.lines_added - commits_per_day.lines_deleted).cumsum().plot()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 36,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "3958"
      ]
     },
     "execution_count": 36,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "diff_sum = diff.sum()\n",
    "diff_sum.lines_added - diff_sum.lines_deleted                                                    "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 37,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "3913"
      ]
     },
     "execution_count": 37,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "3913"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.6.4"
  },
  "varInspector": {
   "cols": {
    "lenName": 16,
    "lenType": 16,
    "lenVar": 40
   },
   "kernels_config": {
    "python": {
     "delete_cmd_postfix": "",
     "delete_cmd_prefix": "del ",
     "library": "var_list.py",
     "varRefreshCmd": "print(var_dic_list())"
    },
    "r": {
     "delete_cmd_postfix": ") ",
     "delete_cmd_prefix": "rm(",
     "library": "var_list.r",
     "varRefreshCmd": "cat(var_dic_list()) "
    }
   },
   "types_to_exclude": [
    "module",
    "function",
    "builtin_function_or_method",
    "instance",
    "_Feature"
   ],
   "window_display": false
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}