numpy.matrix.all — NumPy v2.6.dev0 Manual

method

matrix.all(axis=None, out=None)

[source]

#

Test whether all matrix elements along a given axis evaluate to True.

Parameters:See `numpy.all` for complete descriptionsNotes

This is the same as

ndarray.all

, but it returns a

matrix

object.

Examples

>>> x=np.matrix(np.arange(12).reshape((3,4)));xmatrix([[ 0, 1, 2, 3], [ 4, 5, 6, 7], [ 8, 9, 10, 11]])>>> y=x[0];ymatrix([[0, 1, 2, 3]])>>> (x==y)matrix([[ True, True, True, True], [False, False, False, False], [False, False, False, False]])>>> (x==y).all()False>>> (x==y).all(0)matrix([[False, False, False, False]])>>> (x==y).all(1)matrix([[ True], [False], [False]])