/usr/share/psychtoolbox-3/PsychSignal/AnyAll.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 | function [q] = AnyAll(in)
% [q] = AnyAll(in)
% returns true if any element of IN is non-zeros, false otherwise
% returns a scalar boolean. IN can be anything from a scalar to an N-D
% matrix
% DN 2008
q = any(in(:));
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