argmin(self, axis=None, out=None)
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.
This is the same as :None:None:`ndarray.argmin`, but returns a matrix
object where :None:None:`ndarray.argmin` would return an ndarray
.
Indexes of the minimum values along an axis.
>>> 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]])See :
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