/usr/share/octave/packages/3.2/optim-1.0.17/curvefit_stat.m is in octave-optim 1.0.17-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 | ## Copyright (C) 2011 Olaf Till <olaf.till@uni-jena.de>
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 3 of the License, or
## (at your option) any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
##
## @deftypefn {Function File} {@var{info} =} residmin_stat (@var{f}, @var{p}, @var{x}, @var{y}, @var{settings})
##
## Frontend for computation of statistics for fitting of values,
## computed by a model function, to observed values.
##
## Please refer to the description of @code{residmin_stat}. The only
## differences to @code{residmin_stat} are the additional arguments
## @var{x} (independent values) and @var{y} (observations), that the
## model function @var{f}, if provided, has a second obligatory argument
## which will be set to @var{x} and is supposed to return guesses for
## the observations (with the same dimensions), and that the possibly
## user-supplied function for the jacobian of the model function has
## also a second obligatory argument which will be set to @var{x}.
##
## @seealso {residmin_stat}
##
## @end deftypefn
function ret = curvefit_stat (f, pfin, x, y, settings)
if (nargin == 1)
ret = __residmin_stat__ (f);
return;
endif
if (nargin != 5)
print_usage ()
endif
if (compare_versions (version (), "3.3.55", "<"))
## optimset mechanism was fixed for option names with underscores
## sometime in 3.3.54+, if I remember right
optimget = @ __optimget__;
endif
if (! isempty (dfdp = optimget (settings, "dfdp")) && \
! (ismatrix (dfdp) && ! ischar (dfdp)))
if (ischar (dfdp))
dfdp = str2func (dfdp);
endif
settings.dfdp = @ (p, varargin) dfdp (p, x, varargin{:});
endif
if (! isempty (f))
f = @ (p) f (p, x);
endif
ret = __residmin_stat__ \
(f, pfin, settings, struct ("observations", y));
endfunction
function ret = __optimget__ (s, name, default)
if (isfield (s, name))
ret = s.(name);
elseif (nargin > 2)
ret = default;
else
ret = [];
endif
endfunction
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