matplotlib draws random scatterplots

an introduction

Scatter plot is a common method for analyzing data correlation. The following code uses random numbers to generate numerical values, then generates a scatter plot, and calculates the size of the scatter points according to the magnitude of the values.

two code

1. import matplotlib.pylab as pl
2. import numpy as np
3. x = np.random.random(100)
4. y = np.random.random(100)
5. #s指大小，c指颜色，marker指符号形状
6. pl.scatter(x,y,s=x*500,c=u'r',marker=u'*')
7. pl.show()

Three running results