我想从csv文件创建一个三维散点图,但我无法打印三维散点图。我的代码就像这样
import matplotlib.pyplot as plt
import numpy as np
fig = plt.figure()
ax1 = fig.add_subplot(111,projection='3d')
x, y, z = np.loadtxt('3d_sample.txt', delimiter=',', unpack=True)
ax1.scatter(x,y,z)
plt.show()
答案 0 :(得分:4)
您需要添加:
from mpl_toolkits.mplot3d import Axes3D
例如,
import matplotlib.pyplot as plt
import numpy as np
from mpl_toolkits.mplot3d import Axes3D
fig = plt.figure()
ax1 = fig.add_subplot(111,projection='3d')
x= np.array([1,2,3,4])
y=np.array([5,6,7,8])
z=np.array([9,10,11,12])
ax1.scatter(x,y,z)
plt.show()
给出