numpy.matlib.empty#
- matlib.empty(shape, dtype=None, order='C')[source]#
Return a new matrix of given shape and type, without initializing entries.
- Parameters
- shapeint or tuple of int
Shape of the empty matrix.
- dtypedata-type, optional
Desired output data-type.
- order{āCā, āFā}, optional
Whether to store multi-dimensional data in row-major (C-style) or column-major (Fortran-style) order in memory.
See also
Notes
empty
, unlikezeros
, does not set the matrix values to zero, and may therefore be marginally faster. On the other hand, it requires the user to manually set all the values in the array, and should be used with caution.Examples
>>> import numpy.matlib >>> np.matlib.empty((2, 2)) # filled with random data matrix([[ 6.76425276e-320, 9.79033856e-307], # random [ 7.39337286e-309, 3.22135945e-309]]) >>> np.matlib.empty((2, 2), dtype=int) matrix([[ 6600475, 0], # random [ 6586976, 22740995]])