此功能使指定的轴向后滚动,直到它位于指定的位置,该函数具有三个参数。
numpy.rollaxis(arr, axis, start)
Sr.No. | Parameter & 描述 |
---|---|
1 |
arr 输入数组 |
2 |
axis 轴向后滚动。其他轴的位置相对彼此不变 |
3 |
start 默认情况下为零,以完成整个滚动。滚动直到到达指定位置 |
# It creates 3 dimensional ndarray import numpy as np a = np.arange(8).reshape(2,2,2) print 'The original array:' print a print '\n' # to roll axis-2 to axis-0 (along width to along depth) print 'After applying rollaxis function:' print np.rollaxis(a,2) # to roll axis 0 to 1 (along width to height) print '\n' print 'After applying rollaxis function:' print np.rollaxis(a,2,1)
其输出如下-
The original array: [[[0 1] [2 3]] [[4 5] [6 7]]] After applying rollaxis function: [[[0 2] [4 6]] [[1 3] [5 7]]] After applying rollaxis function: [[[0 2] [1 3]] [[4 6] [5 7]]]
参考链接
https://www.learnfk.com/numpy/numpy-rollaxis.html
标签:function,numpy,rollaxis,After,无涯,print,NumPy,axis From: https://blog.51cto.com/u_14033984/7892950