在numpy中更改矩阵的对角线的值 [英] changing the values of the diagonal of a matrix in numpy

问题描述

如何更改numpy中矩阵对角线的值?

how can I change the values of the diagonal of a matrix in numpy?

我检查了 Numpy修改ndarray对角线，但是该函数未在numpy v中实现1.3.0.

I checked Numpy modify ndarray diagonal, but the function there is not implemented in numpy v 1.3.0.

让我们说我们有一个np.array X，我想将对角线的所有值都设置为0.

lets say we have a np.array X and I want to set all values of the diagonal to 0.

推荐答案

您尝试过numpy.fill_diagonal吗?请参阅以下 answer 和此

Did you try numpy.fill_diagonal? See the following answer and this discussion. Or the following from the documentation (although currently broken):

http://docs.scipy.org/doc/numpy/reference/generation/numpy.fill_diagonal.html

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