numpy.matrix.argmin¶
-
matrix.
argmin
(axis=None, out=None)[source]¶ Indexes of the minimum values along an axis.
Return the indexes of the first occurrences of the minimum values along the specified axis. If axis is None, the index is for the flattened matrix.
Parameters: See `numpy.argmin` for complete descriptions. See also
Notes
This is the same as
ndarray.argmin
, but returns amatrix
object wherendarray.argmin
would return anndarray
.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.argmin() 11 >>> x.argmin(0) matrix([[2, 2, 2, 2]]) >>> x.argmin(1) matrix([[3], [3], [3]])