creating a 3D scatter plot from a CSV file

Question

I wanted to create a 3d scatter from a csv file and I wasn't able to print the 3d scatter. My code was like this

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()

Answer 1

You need to add:

from mpl_toolkits.mplot3d import Axes3D

For example,

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()

gives