xorbits.numpy.triu#
- xorbits.numpy.triu(m, k=0, gpu=None)[源代码]#
Upper triangle of an array.
Return a copy of an array with the elements below the k-th diagonal zeroed. For arrays with
ndim
exceeding 2, triu will apply to the final two axes.Please refer to the documentation for tril for further details.
参见
tril
lower triangle of an array
实际案例
>>> np.triu([[1,2,3],[4,5,6],[7,8,9],[10,11,12]], -1) array([[ 1, 2, 3], [ 4, 5, 6], [ 0, 8, 9], [ 0, 0, 12]])
>>> np.triu(np.arange(3*4*5).reshape(3, 4, 5)) array([[[ 0, 1, 2, 3, 4], [ 0, 6, 7, 8, 9], [ 0, 0, 12, 13, 14], [ 0, 0, 0, 18, 19]], [[20, 21, 22, 23, 24], [ 0, 26, 27, 28, 29], [ 0, 0, 32, 33, 34], [ 0, 0, 0, 38, 39]], [[40, 41, 42, 43, 44], [ 0, 46, 47, 48, 49], [ 0, 0, 52, 53, 54], [ 0, 0, 0, 58, 59]]])
This docstring was copied from numpy.