[Python Study Notes] Stacked histogram drawing

"" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "", "" "". "" "" "" "" "" "" "" "," "" "" "," "" "" "," "" "," "" ">> Stacked Histogram .py>> Author: Liu Yang>> e-mail: [email protected]>> blog: Www.cnblogs.com/liu66blog "" " "" "" "" "" "" "" "" "" "" "" "" "" "" "" "." "" "" "" "" "" "" "" "" "" "" "" "" #!/usr/bin/env python#-*-. " Coding:utf-8-*-import Matplotlib.pyplot as Pltimport matplotlib# defines the font to use to prevent Chinese garbled font=matplotlib.font_manager. Fontproperties (fname=r "C:\Windows\Fonts\Deng.ttf") # double histogram, upper and lower structure applies to one histogram all above another set of Def Barsplot (): Mr. # into a canvas fig=plt.fig Ure () # Generate data x1=[x for X in range (1,9)] y1=[n*2 for n in range (1,9)] x2=[x for x in range (1,9)] y2=[x**2 fo R x in X2] # start Drawing bar Chart 2, first draw a large number, the value is small directly in the original image overlay L2=plt.bar (x2,y2,color= ' B ', width=0.4) # Start Drawing bar 1 L1=plt.bar (x1,y1,color    = ' g ', width=0.4) # set X label Plt.xlabel (U ' x axis ', fontproperties=font) # set y-axis label plt.ylabel (' Y axis ', fontproperties=font)  # Set Caption Plt.title (U ' stacked histogram ', Fontproperties=font) # Set the note Mania  Plt.legend (handles = [L1, L2,], labels = [' Last year ', ' this year '], loc = ' best ', Prop=font) # show the exact numbers for x1,x2, y1, y2 in Zi P (x1,x2, Y1, y2): Plt.text (x1, y1, '%.0f '% y1, ha= ' center ', va= ' bottom ') plt.text (x2, y2, '%.0f '% y2, ha = ' Center ', va= ' Bottom ') # show Plt.show () # If the most main module runs if __name__ = = ' __main__ ': # Instantiate Ba=barsplot ()

[Python Study Notes] stacked histogram drawing