绘制三维散点图,需要指定画布的类型为三维坐标系,也即添加语句:ax = fig.add_subplot(221, projection='3d')
语法:plt.scatter(x,y,z,s,c,cmap...(x, y, s = sizes, c = colors, cmap = 'jet', alpha = .6)
#设置三维散点图,指定z值为sizes数组
ax2 = fig.add_subplot(222..., projection = '3d')
ax2.scatter(x, y, sizes, c = colors, cmap = 'jet', alpha = .6)
#指定z值和大小为sizes数组...levels:如果为整数n,则在z的最大值和最小值之间自动寻找不大于n+1条间隔的最优化等高线。也可以传入数组,表示等高线的值,但是必须从大到小排列。..., colors=['k', 'r', 'g', 'b'], fmt='%.2f')
#为每条等高线设置颜色,一共10条等高线,按照k,r,g,b分别设色,并设置线形
ax3 = ax[1, 0]
colors