table of Contents
1. Direct predetermined shape change directly through the shape tuples ----
2. Change --- reshape returns a new array
3. The high-latitude flattened array
Create an array
import numpy as np
arr=np.arange(16)
print('arr:',arr)
print('arr形状：',arr.shape)
print(type(arr))
1. Direct predetermined shape change directly through the shape tuples ----
arr.shape(4,4)
print(arr)
print(arr.shape)
2. Change --- reshape returns a new array
arr_new=arr.reshape(4,4)
print(arr_new)
print(arr_new.shape)
3. The high-latitude flattened array
Create an array of high-latitude
import numpy as np
arr=np.arange(16).reshape(4,4)
print(arr)
print(arr.shape)
(1) by Ravel () flattening
arr_new=arr.ravel()
# arr_new=np.ravel(arr)
print(arr_new)
(2) Flatten () flattening
The default parameter is expanded by line C
F parameter is expanded by columns
arr_new=arr.flatten()
print('arr_new:',arr_new)
arr_new=arr.flatten('F')
print('arr_new:',arr_new)
