/usr/share/octave/packages/nan-3.1.4/sumsq.m is in octave-nan 3.1.4-3.
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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 | function [o]=sumsq(x,DIM)
% SUMSQ calculates the sum of squares.
%
% [y] = sumsq(x [, DIM])
%
% DIM dimension
% N STD of N-th dimension
% default or []: first DIMENSION, with more than 1 element
%
% y estimated standard deviation
%
% features:
% - can deal with NaN's (missing values)
% - dimension argument also in Octave
% - compatible to Matlab and Octave
%
% see also: RMS, SUMSKIPNAN, MEAN, VAR, MEANSQ,
%
%
% References(s):
% 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 2 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/>.
% $Id$
% Copyright (C) 2009,2010 by Alois Schloegl <alois.schloegl@gmail.com>
% This function is part of the NaN-toolbox
% http://pub.ist.ac.at/~schloegl/matlab/NaN/
if nargin<2,
DIM = [];
end;
if isempty(DIM),
DIM = find(size(x)>1,1);
if isempty(DIM), DIM=1; end;
end;
[s,n,o] = sumskipnan(x,DIM);
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