ColMean - aleslab/Psychtoolbox-3-aleslab-fork GitHub Wiki
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.
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Psychtoolbox/PsychProbability/ColMean.m