diagflat(v, k=0)
Input data, which is flattened and set as the k
-th diagonal of the output.
Diagonal to set; 0, the default, corresponds to the "main" diagonal, a positive (negative) k
giving the number of the diagonal above (below) the main.
The 2-D output array.
Create a two-dimensional array with the flattened input as a diagonal.
diag
MATLAB work-alike for 1-D and 2-D arrays.
diagonal
Return specified diagonals.
trace
Sum along diagonals.
>>> np.diagflat([[1,2], [3,4]]) array([[1, 0, 0, 0], [0, 2, 0, 0], [0, 0, 3, 0], [0, 0, 0, 4]])
>>> np.diagflat([1,2], 1) array([[0, 1, 0], [0, 0, 2], [0, 0, 0]])See :
The following pages refer to to this document either explicitly or contain code examples using this.
numpy.diag
numpy.diagonal
numpy.trace
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