提交 87bd3db4 authored 作者: Arnaud Bergeron's avatar Arnaud Bergeron

Remove section titles in the docstring (they don't show up and cause warnings).

上级 52903ced
......@@ -863,18 +863,21 @@ class FillDiagonalOffset(gof.Op):
return [wr_a, wr_val,wr_offset]
fill_diagonal_offset = FillDiagonalOffset()
""" Returns a copy of an array with all
elements of the main diagonal set to a specified scalar value.
fill_diagonal_offset_ = FillDiagonalOffset()
:param a: Rectangular array of two dimensions.
:param val: Scalar value to fill the diagonal whose type must be
compatible with that of array 'a' (i.e. 'val' cannot be viewed
as an upcast of 'a').
:params offset : Scalar value Offset of the diagonal from the main
diagonal. Can be positive or negative integer.
:return: An array identical to 'a' except that its offset diagonal
is filled with scalar 'val'. The output is unwrapped.
def fill_diagonal_offset(a, val, offset):
"""
Returns a copy of an array with all
elements of the main diagonal set to a specified scalar value.
"""
:param a: Rectangular array of two dimensions.
:param val: Scalar value to fill the diagonal whose type must be
compatible with that of array 'a' (i.e. 'val' cannot be viewed
as an upcast of 'a').
:param offset: Scalar value Offset of the diagonal from the main
diagonal. Can be positive or negative integer.
:return: An array identical to 'a' except that its offset diagonal
is filled with scalar 'val'. The output is unwrapped.
"""
return fill_diagonal_offset_(a, val, offset)
......@@ -496,20 +496,35 @@ def qr(a, mode="full"):
Factor the matrix a as qr, where q
is orthonormal and r is upper-triangular.
Parameters :
------------
a : array_like, shape (M, N)
:type a:
array_like, shape (M, N)
:param a:
Matrix to be factored.
mode : {'reduced', 'complete', 'r', 'raw', 'full', 'economic'}, optional
:type mode:
one of 'reduced', 'complete', 'r', 'raw', 'full' and
'economic', optional
:keyword mode:
If K = min(M, N), then
'reduced' : returns q, r with dimensions (M, K), (K, N) (default)
'complete' : returns q, r with dimensions (M, M), (M, N)
'r' : returns r only with dimensions (K, N)
'raw' : returns h, tau with dimensions (N, M), (K,)
'full' : alias of 'reduced', deprecated
'economic' : returns h from 'raw', deprecated. The options 'reduced',
'reduced'
returns q, r with dimensions (M, K), (K, N)
'complete'
returns q, r with dimensions (M, M), (M, N)
'r'
returns r only with dimensions (K, N)
'raw'
returns h, tau with dimensions (N, M), (K,)
'full'
alias of 'reduced', deprecated (default)
'economic'
returns h from 'raw', deprecated. The options 'reduced',
'complete', and 'raw' are new in numpy 1.8, see the notes for more
information. The default is 'reduced' and to maintain backward
compatibility with earlier versions of numpy both it and the old
......@@ -518,21 +533,25 @@ def qr(a, mode="full"):
deprecated. The modes 'full' and 'economic' may be passed using only
the first letter for backwards compatibility, but all others
must be spelled out.
Default mode is 'full' which is also default for numpy 1.6.1.
Note: Default mode was left to full as full and reduced are both doing
the same thing in the new numpy version but only full works on the old
previous numpy version.
Returns :
---------
q : matrix of float or complex, optional
A matrix with orthonormal columns. When mode = 'complete'
the result is an orthogonal/unitary matrix depending on whether
or not a is real/complex. The determinant may be either +/- 1 in that case.
r : matrix of float or complex, optional
The upper-triangular matrix.
Default mode is 'full' which is also default for numpy 1.6.1.
:note: Default mode was left to full as full and reduced are
both doing the same thing in the new numpy version but only
full works on the old previous numpy version.
:rtype q:
matrix of float or complex, optional
:return q:
A matrix with orthonormal columns. When mode = 'complete' the
result is an orthogonal/unitary matrix depending on whether or
not a is real/complex. The determinant may be either +/- 1 in
that case.
:rtype r:
matrix of float or complex, optional
:return r:
The upper-triangular matrix.
"""
x = [[2, 1], [3, 4]]
if isinstance(numpy.linalg.qr(x,mode), tuple):
......@@ -549,8 +568,6 @@ class SVD(Op):
def __init__(self, full_matrices=True, compute_uv=True):
"""
inputs :
--------
full_matrices : bool, optional
If True (default), u and v have the shapes (M, M) and (N, N),
respectively.
......@@ -582,21 +599,18 @@ def svd(a, full_matrices=1, compute_uv=1):
"""
This function performs the SVD on CPU.
Parameters :
------------
full_matrices : bool, optional
:type full_matrices: bool, optional
:param full_matrices:
If True (default), u and v have the shapes (M, M) and (N, N),
respectively.
Otherwise, the shapes are (M, K) and (K, N), respectively,
where K = min(M, N).
compute_uv : bool, optional
:type compute_uv: bool, optional
:param compute_uv:
Whether or not to compute u and v in addition to s.
True by default.
Returns :
-------
U, V and D matrices.
:returns: U, V and D matrices.
"""
return SVD(full_matrices, compute_uv)(a)
......
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