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from bokeh.plotting import figure, show, output_notebook
import numpy as np


    

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output_notebook()


    

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# Define Bollinger Bands.
upperband = np.random.random_integers(100, 150, size=100)
lowerband = upperband - 100
x_data = np.arange(1, 101)


    

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# Bollinger shading glyph:
band_x = np.append(x_data, x_data[::-1]) 
band_y = np.append(lowerband, upperband[::-1])


    

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p = figure(x_axis_type='datetime')
p.patch(band_x, band_y, color='#7570B3', fill_alpha=0.2)


    

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p.title = 'Bollinger Bands'
p.plot_height = 600
p.plot_width = 800
p.grid.grid_line_alpha = 0.4


    

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show(p)


    

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