numpy write to csv file code example

Example 1: save numpy array to csv

import pandas as pd 
pd.DataFrame(np_array).to_csv("path/to/file.csv")

Example 2: numpy to csv

import numpy as np
x = np.arange(0.0,5.0,1.0)
np.savetxt('test.csv', x, delimiter=',')

Example 3: export 4 d array

# save numpy array as npy file
from numpy import asarray
from numpy import save
# define data
data = asarray([[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]])
# save to npy file
save('data.npy', data)

# load numpy array from npy file
from numpy import load
# load array
data = load('data.npy')
# print the array
print(data)