Merge branch 'improveMeanCalc'

Author: RJaBi

average.py

@@ -1,11 +1,6 @@
 import numpy as np
 def mean(array):
-    count=0
-    sum = 0
-    for x in array:
-        sum = sum + x
-        count = count + 1
-    return float(sum)/float(count)
+    return np.mean(array)
 def main():
     data = np.array([1.0, 2.0, 3.0, 4.0])
     ave = mean(data)