-
matrix.var(axis=None, dtype=None, out=None, ddof=0)
[source] -
Returns the variance of the matrix elements, along the given axis.
Refer to
numpy.var
for full documentation.See also
Notes
This is the same as
ndarray.var
, except that where anndarray
would be returned, amatrix
object is returned instead.Examples
>>> x = np.matrix(np.arange(12).reshape((3, 4))) >>> x matrix([[ 0, 1, 2, 3], [ 4, 5, 6, 7], [ 8, 9, 10, 11]]) >>> x.var() 11.916666666666666 >>> x.var(0) matrix([[ 10.66666667, 10.66666667, 10.66666667, 10.66666667]]) >>> x.var(1) matrix([[ 1.25], [ 1.25], [ 1.25]])
matrix.var()
2017-01-10 18:11:30
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