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numpy.asmatrix()

numpy.asmatrix(data, dtype=None) [source]

Interpret the input as a matrix.

Unlike matrix, asmatrix does not make a copy if the input is already a matrix or an ndarray. Equivalent to matrix(data, copy=False).

Parameters:

data : array_like

Input data.

dtype : data-type

Data-type of the output matrix.
Returns:

mat : matrix

data interpreted as a matrix.

Examples

1
>>> x = np.array([[1, 2], [3, 4]])
1
>>> m = np.asmatrix(x)
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>>> x[0,0] = 5
1
2
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>>> m
matrix([[5, 2],
        [3, 4]])
doc_NumPy
doc_NumPy
2025-01-10 15:47:30
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