Python实现绘图散点图(scatter)

plt.scatter(x, y, s=None, c=None, marker=None, cmap=None, norm=None, vmin=None, vmax=None, alpha=None, linewidths=None, *, edgecolors=None, plotnonfinite=False, data=None, **kwargs)

import numpy as np
import matplotlib.pyplot as plt
plt.rcParams['font.sans-serif'] = 'SimHei'#显示中文
plt.rcParams['axes.unicode_minus'] = 'False'
x_speed = np.arange(10,210,10)#生产10-200的速度区间
y_distance = np.array([0.5,2.0,4.4,7.9,12.3,17.7,24.1,31.5,39.9,49.2,59.5,70.8,83.1,96.4,110.7,126.0,142.2,159.4,177.6,196.8])
plt.scatter(x_speed,y_distance,s=50,c='red',edgecolors='blue',alpha=0.9)
plt.show()

import matplotlib.pyplot as plt
# 导入颜色条库
from matplotlib import colors
import numpy as np
 
x = np.random.randn(60) # 随机产生60个X坐标
y = np.random.randn(60) # 随机产生60个Y坐标
color = np.random.rand(60) # 随机产生用于映射颜色的数值
size = 500 * np.random.rand(60) # 随机改变散点大小的数值
changecolor = colors.Normalize(vmin=0.4, vmax=0.8)
plt.scatter(x, y, c=color, s = size, alpha=0.3, cmap='viridis', norm=changecolor)
plt.colorbar() # 显示颜色条
plt.show()