此函数返回具有指定大小的新数组，该函数采用以下参数。
numpy.resize(arr, shape)
| Sr.No. | 描述 |
|---|---|
| 1 |
arr 输入数组要调整大小 |
| 2 |
shape 输出数组的新维度 |
import numpy as np a = np.array([[1,2,3],[4,5,6]]) print 'First array:' print a print '\n' print 'The shape of first array:' print a.shape print '\n' b = np.resize(a, (3,2)) print 'Second array:' print b print '\n' print 'The shape of second array:' print b.shape print '\n' # Observe that first row of a is repeated in b since size is bigger print 'Resize the second array:' b = np.resize(a,(3,3)) print b
上面的程序将产生以下输出-
First array: [[1 2 3] [4 5 6]] The shape of first array: (2, 3) Second array: [[1 2] [3 4] [5 6]] The shape of second array: (3, 2) Resize the second array: [[1 2 3] [4 5 6] [1 2 3]]
