scatter绘画散点图代码如下：
import matplotlib.pyplot as plt
plt.scatter(x,y,
s = 20
c='b'
marker=‘o'
cmap=None,
norm=None,
vmin=None,
vmax=None,
alpha=None,
linewidths=None,
)
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
x=np.random.randint(0,10,10)
y=np.random.randint(0,10,10)
print(x)
print(y)
plt.scatter(x,y,s=50)默认形状圆点，颜色b 蓝色，大小50
out:
[5 1 5 3 1 5 0 5 4 7]
[8 2 7 7 8 6 3 8 5 9]
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
x = np.array([[0,0],[0,1],[1,1],[3,2],[-2,3],[1,2],[4,3]])
print(x)
plt.scatter(x[:,0],x[:,1],marker='x',color='k',s=20)#点的形状x，颜色黑色，大小20
out:
[[ 0 0]
[ 0 1]
[ 1 1]
[ 3 2]
[-2 3]
[ 1 2]
[ 4 3]]
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