How to group indicators on one chart?

[lapitskaya38]

Hi!
I have four indicators (marked in red "V" in the screenshot) Is it possible to group these indicators on one chart, outside the chart with candles?

[peacerider]

Hi,

Following discussion is may be helpful.
#195

Example

import talib as ta
self.sma1_ = ta.SMA(close, timeperiod=25)
self.sma2_ = ta.SMA(close, timeperiod=45)
self.sma3_ = ta.SMA(close, timeperiod=75)
self.sma1, self.sma2. self.sma3 = self.I(lambda: (self.sma1_, self.sma2_, self.sma3_), name="sma")

[lapitskaya38]

Thanks a lot.
Have also used this #382

Perfect:

[peacerider]

Hi,

It was very nice.
Until now, I didn't care about legends, but I took this opportunity to try it.

Succeeded!
Thank you so much.

self.ema1, self.ema2 = self.I(my_ema, close, self.n1, self.n2, overlay=False, legends=['ema1', 'ema2'])

I used the code below.
zlpatel@a95c555

If you don't mind, could you tell me the code you used?

[lapitskaya38]

self.M5_ADX_ind, self.M5_MINUS_DI_ind, self.M5_PLUS_DI_ind, self.M5_MA_Tvalue = self.I(lambda: (self.M5_ADX_, self.M5_MINUS_DI_, self.M5_PLUS_DI_, self.M5_MA_), legends=["ADX","MINUS_DI", "PLUS_DI", "Пороговое значение" ], overlay=False)

[peacerider]

Thanks!

[Rydo111]

Thanks, very nice. I will definitely use this.

[Rydo111]

The cool thing I messed with was dynamic re-scaling of the y-axis. I wanted to plot relative volume, so I created a new plot section, made it a bar chart, added it to the figs_above_ohlc list and then used the CustomJS callback.

The section code is below the _plot_volume_section() function. Code is:

def _plot_rvol_section(): """RVOL section""" fig = new_indicator_figure(y_axis_label="RVOL") fig.height=70 fig.xaxis.visible = False temp = df.copy(deep=True) temp = ut.df_flip_caps(df_in=temp, caps=False) kwargs = {'fill_method': 'bfill'} rvol = rv.ta_rvol(_df=temp, length=50, ma_type='sma', **kwargs) rvol = rvol[rvol.columns[0]] fig.y_range = DataRange1d(bounds=(0, max(rvol))) source.add(rvol.values, name= 'RVOL') r = fig.vbar('index', BAR_WIDTH, 'RVOL', source=source, color=inc_cmap) set_tooltips(fig, [('RVOL', '@RVOL{0.0}')], renderers=[r]) fig.yaxis.formatter = NumeralTickFormatter(format="0 a") return fig

The callback code looked like this:
callback = CustomJS(args={'y_range': fig_rvol.y_range, 'source': source}, code=''

    clearTimeout(window._autoscale_timeout);
    var Index = source.data.index, rvol = source.data.RVOL, start = cb_obj.start, end = cb_obj.end, min = 0, max = -Infinity;

    for (var i=0; i < Index.length; ++i) {
         if (start <= Index[i] && Index[i] <= end) {
             max = Math.max(rvol[i], max); min = Math.min(rvol[i], min);
         } 
    } 

    var pad = (max - min) * .09;
    window._autoscale_timeout = setTimeout(function() {
         y_range.start = min - pad; y_range.end = max + pad; 
    });

    '''.replace('\n', '').replace('\t', '')
                    )`

Voila! y-axis now re-sizes dynamically!