# scipy.sparse.coo_matrix.argmax¶

coo_matrix.argmax(self, axis=None, out=None)[source]

Return indices of maximum elements along an axis.

Implicit zero elements are also taken into account. If there are several maximum values, the index of the first occurrence is returned.

Parameters
axis{-2, -1, 0, 1, None}, optional

Axis along which the argmax is computed. If None (default), index of the maximum element in the flatten data is returned.

outNone, optional

This argument is in the signature solely for NumPy compatibility reasons. Do not pass in anything except for the default value, as this argument is not used.

Returns
indnumpy.matrix or int

Indices of maximum elements. If matrix, its size along axis is 1.

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