/usr/share/psychtoolbox-3/Psychometric/ComputeOptimalBeta.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 | function beta = ComputeOptimalBeta(ps,pn,Vh,Vfa,Vm,Vcr)
% beta = ComputeOptimalBeta(ps,pn,Vh,Vfa,Vm,Vcr)
%
% Compute the optimal beta to be used in a yes-no
% experiment with the passed prior odds and payoffs.
%
% xx/xx/xx dhb Wrote it.
beta = (pn/ps)*(Vcr + Vfa)/(Vh + Vm);
|