numpy.matlib.empty¶

numpy.matlib.empty(shape,dtype=None,order='C')[source]¶

Return a new matrix of given shape and type, without initializing entries.

Parameters:	shape : int or tuple of int Shape of the empty matrix. dtype : data-type, optional Desired output data-type. order : {‘C’, ‘F’}, optional Whether to store multi-dimensional data in row-major(C-style) or column-major (Fortran-style) order inmemory.

See also

empty_like,zeros

Notes

empty, unlikezeros, does not set the matrix values to zero,and may therefore be marginally faster. On the other hand, it requiresthe user to manually set all the values in the array, and should beused with caution.

Examples

>>>importnumpy.matlib>>>np.matlib.empty((2,2))# filled with random datamatrix([[  6.76425276e-320,   9.79033856e-307],        [  7.39337286e-309,   3.22135945e-309]])        #random>>>np.matlib.empty((2,2),dtype=int)matrix([[ 6600475,        0],        [ 6586976, 22740995]])                          #random