/usr/share/psychtoolbox-3/PsychProbability/ColMean.m is in psychtoolbox-3-common 3.0.9+svn2579.dfsg1-1.
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 | function theMean = ColMean(matrix)
% theMean = ColMean(matrix)
%
% Take the column mean of a matrix. Unlike mean, always returns a vector,
% even if the matrix has only 1 row.
%
% 2/13/96 dhb Wrote it.
% 7/24/04 awi Cosmetic.
[m,n] = size(matrix);
if (m == 1)
theMean = matrix;
else
theMean = mean(matrix);
end
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