학습일 : 2020.01.24

학습목표

  1. ndarray shape 변경하기
import numpy as np

ravel, np.ravel

x = np.arange(15).reshape(3, 5)
print(x)

[[ 0  1  2  3  4]
 [ 5  6  7  8  9]
 [10 11 12 13 14]]

np.ravel(x, order='F')

array([ 0, 5, 10, 1, 6, 11, 2, 7, 12, 3, 8, 13, 4, 9, 14])

temp = x.ravel()
print(temp)

[ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14]

temp[0] = 100
print(temp)
print(x)

[100   1   2   3   4   5   6   7   8   9  10  11  12  13  14]
[[100   1   2   3   4]
 [  5   6   7   8   9]
 [ 10  11  12  13  14]]

flatten