/usr/share/psychtoolbox-3/PsychProbability/ColStd.m is in psychtoolbox-3-common 3.0.14.20170103+git6-g605ff5c.dfsg1-1build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | function theMean = ColStd(matrix)
% theMean = ColStd(matrix)
%
% Take the column standard deviation of a matrix. Unlike std, always
% returns a vector, even if the matrix has only 1 row.
%
% 2/13/96 dhb Wrote it.
[m,n] = size(matrix);
if (m == 1)
theMean = zeros(size(matrix));
else
theMean = std(matrix);
end
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