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 k : int, optional Index of the diagonal: 0 refers to the main diagonal, a positive value refers to an upper diagonal, and a negative value to a lower diagonal. dtype : dtype, optional Data-type of the returned matrix. |
---|---|
Returns: |
I : matrix A |
>>> import numpy.matlib >>> np.matlib.eye(3, k=1, dtype=float) matrix([[ 0., 1., 0.], [ 0., 0., 1.], [ 0., 0., 0.]])
© 2008–2017 NumPy Developers
Licensed under the NumPy License.
https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.matlib.eye.html