numpy.matlib.eye()
numpy.matlib.eye
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numpy.matlib.eye(n, M=None, k=0, dtype=<type 'float'>)[source] -
Return a matrix with ones on the diagonal and zeros elsewhere.
Parameters: n : int
Number of rows in the output.
M : int, optional
Number of columns in the output, defaults to
n.k : int, optional
Index of the diagonal: 0 refers to the main diagonal, a positive value refers to an upper diagonal, and