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Editor to share with you how to use matplotlib drawing in Python to establish canvas and coordinate system, I believe most people do not know much about it, so share this article for your reference. I hope you will get a lot after reading this article. Let's learn about it together.

First, set up the canvas

Import matplotlib.pyplot as pltimport numpy as npx=np.arange (8) y=np.arange (8) print (XMagney) # establishes canvas figsize, which uses width and height to control the width and height of canvas plt.figure (figsize= (8) 6), dpi=90) # facecolor='red' sets canvas color 2, uses plt.subplot function to establish coordinate system, and draws line chart and bar chart respectively

Plt.subplot (2) 2) # means to divide the whole area of the icon into 2 rows and 2 columns in the first coordinate system to draw plt.plot (x ~ 2) plt.subplot (2 ~ 2 ~ 2) # draw plt.bar (x ~ y) plt.subplot (2 ~ 2 ~ 2 ~ 3) in the second coordinate system # draw plt.plot (x ~ y) plt.subplot (2 ~ 2 ~ 2 ~ 4) in the third coordinate system # draw plt.bar (x ~ (x) in the fourth coordinate system. Y) the complete code is as follows

Import matplotlib.pyplot as pltimport numpy as npx=np.arange (8) y=np.arange (8) print (XMago y) # establishes canvas figsize, which uses width and height to control the width and height of the canvas plt.figure (figsize= (8jue 6), dpi=90) # facecolor='red' sets the canvas color plt.subplot (2pr 2) # means to divide the entire area of the icon into 2 rows and columns to draw plt.plot (x reference y) plt.subplot (2p2) in the first coordinate system 2) # in the second coordinate system, draw plt.bar (XMague y) plt.subplot (2Power2 Magne3) # draw plt.plot (XMague y) plt.subplot in the third coordinate system (2Power2 Magne4) # draw plt.bar (XMagol y) plt.show () 4 in the fourth coordinate system. The corresponding effect figure is shown below.

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