/usr/share/psychtoolbox-3/PsychProbability/RandLim.m is in psychtoolbox-3-common 3.0.11.20140816.dfsg1-1.
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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 | function out = RandLim(n,lower,upper)
% returns pseudo-random values drawn from a uniform distribution with lower
% and upper limits LOWER and UPPER.
% LOWER and UPPER can also be matrices of the same shape as rand(N) would
% create
%
% N is a vector indicating the dimensions of the output:
% N = [3] creates a 3x3 matrix
% N = [1,3] creates a 1x3 matrix
% N = [17,1,3] creates a 17x1x3 matrix
%
% LOWER and UPPER can be any number
% DN 2008-07-21 Wrote it
% DN 2008-09-19 Support for vector lower and upper limits
error(nargchk(3, 3, nargin, 'struct'))
r = rand(n);
if (~isscalar(lower) && any(size(lower)~=size(r))) || (~isscalar(upper) && any(size(upper)~=size(r)))
error('LOWER and UPPER must each be scalar or have the same shape as rand(N)')
else
out = lower + r.*(upper-lower);
end
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