diff options
Diffstat (limited to 'numpy/matlib.py')
-rw-r--r-- | numpy/matlib.py | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/numpy/matlib.py b/numpy/matlib.py deleted file mode 100644 index cfc61f4f6..000000000 --- a/numpy/matlib.py +++ /dev/null @@ -1,65 +0,0 @@ -from numpy.core.defmatrix import matrix, asmatrix -from numpy import ndarray, array -import numpy as N -from numpy import * - -__version__ = N.__version__ - -__all__ = N.__all__[:] # copy numpy namespace -__all__ += ['rand', 'randn', 'repmat'] - -def empty(shape, dtype=None, order='C'): - """return an empty matrix of the given shape - """ - return ndarray.__new__(matrix, shape, dtype, order=order) - -def ones(shape, dtype=None, order='C'): - """return a matrix initialized to all ones - """ - a = ndarray.__new__(matrix, shape, dtype, order=order) - a.fill(1) - return a - -def zeros(shape, dtype=None, order='C'): - """return a matrix initialized to all zeros - """ - a = ndarray.__new__(matrix, shape, dtype, order=order) - a.fill(0) - return a - -def identity(n,dtype=None): - """identity(n) returns the identity matrix of shape n x n. - """ - a = array([1]+n*[0],dtype=dtype) - b = empty((n,n),dtype=dtype) - b.flat = a - return b - -def eye(n,M=None, k=0, dtype=float): - return asmatrix(N.eye(n,M,k,dtype)) - -def rand(*args): - if isinstance(args[0], tuple): - args = args[0] - return asmatrix(N.random.rand(*args)) - -def randn(*args): - if isinstance(args[0], tuple): - args = args[0] - return asmatrix(N.random.randn(*args)) - -def repmat(a, m, n): - """Repeat a 0-d to 2-d array mxn times - """ - a = asanyarray(a) - ndim = a.ndim - if ndim == 0: - origrows, origcols = (1,1) - elif ndim == 1: - origrows, origcols = (1, a.shape[0]) - else: - origrows, origcols = a.shape - rows = origrows * m - cols = origcols * n - c = a.reshape(1,a.size).repeat(m, 0).reshape(rows, origcols).repeat(n,0) - return c.reshape(rows, cols) |