pylab 3D散点图与绘制的数据的二维投影 [英] pylab 3d scatter plots with 2d projections of plotted data
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问题描述
我想创建一个简单的3D散点图,但我想也显示此数据的2D投影上的数字相同。 这将允许显示两个那些3个变量,可能是很难看到的3D绘图之间的相关性。
我记得看到在此之前的地方,但没能再次找到它。
下面是一些玩具例子:
X = np.random.random(100)
Y = np.random.random(100)
Z =的sin(x ** 2 + Y ** 2)
图=图()
AX = fig.add_subplot(111,投影='3D')
ax.scatter(X,Y,Z)
解决方案
您可以使用剧情
方法并指定<$ C添加三维散数据的二维投影$ C> zdir :
进口numpy的为NP
进口matplotlib.pyplot为PLT
X = np.random.random(100)
Y = np.random.random(100)
Z = np.sin(3 * X ** 2 + Y ** 2)
图= plt.figure()
AX = fig.add_subplot(111,投影='3D')
ax.scatter(X,Y,Z)
ax.plot(X,Z,R +,zdir ='y'的,ZS = 1.5)
ax.plot(Y,Z,G +,zdir ='×',ZS = -0.5)
ax.plot(X,Y,K +,zdir ='Z',ZS = -1.5)
ax.set_xlim([ - 0.5,1.5])
ax.set_ylim([ - 0.5,1.5])
ax.set_zlim([ - 1.5,1.5])
plt.show()
I am trying to create a simple 3D scatter plot but I want to also show a 2D projection of this data on the same figure. This would allow to show a correlation between two of those 3 variables that might be hard to see in a 3D plot.
I remember seeing this somewhere before but was not able to find it again.
Here is some toy example:
x= np.random.random(100)
y= np.random.random(100)
z= sin(x**2+y**2)
fig= figure()
ax= fig.add_subplot(111, projection= '3d')
ax.scatter(x,y,z)
解决方案
You can add 2D projections of your 3D scatter data by using the plot
method and specifying zdir
:
import numpy as np
import matplotlib.pyplot as plt
x= np.random.random(100)
y= np.random.random(100)
z= np.sin(3*x**2+y**2)
fig= plt.figure()
ax= fig.add_subplot(111, projection= '3d')
ax.scatter(x,y,z)
ax.plot(x, z, 'r+', zdir='y', zs=1.5)
ax.plot(y, z, 'g+', zdir='x', zs=-0.5)
ax.plot(x, y, 'k+', zdir='z', zs=-1.5)
ax.set_xlim([-0.5, 1.5])
ax.set_ylim([-0.5, 1.5])
ax.set_zlim([-1.5, 1.5])
plt.show()
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