use matplotlib to draw scatter plot

There are many pionts in this kind of table.

How to do it? We can use scatter() to draw it.

Code:

import matplotlib.pyplot as plt

plt.scatter(1,4)

plt.show()

The result :

 

 

now,we can use scatter() to draw many pionts.Just like this:

code：

import matplotlib.pyplot as plt

x=[1,2,3,4,5,6]

y=[2,4,6,8,10,11]

plt.scatter(x,y,s=50)

plt.show()

 

现在试试绘制更多的点，代码如下：

import matplotlib.pyplot as plt

x_values=list(range(1,1001))

y_valuse=[x**2 for x in x_values]

plt.scatter(x_values,y_valuse,s=40)

plt.axis([0,1100,0,1100000])#参数从左向右含义一次是：横坐标的起始点、横坐标的最大值，纵坐标的起始点，纵坐标的最大值

plt.show()

绘制效果如下图所示：