/usr/share/psychtoolbox-3/PsychHardware/PR650Toolbox/PR650parsespdstr.m is in psychtoolbox-3-common 3.0.11.20140816.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 18 19 20 21 22 | function spd = PR650parsespdstr(readStr, S)
% spd = PR650parsespdstr(readStr,S)
%
% Parse the spectral power distribution string
% returned by the PR650.
if nargin < 2 || isempty(S)
S = [380 5 81];
end
start = findstr(readStr,'0380.');
for k= 1:101
%fprintf('k: %d, bi: %d, ed: %d\n', k, start+6+17*(k-1), start+6+9+17*(k-1));
spd(k) = str2num(readStr(start+6+17*(k-1):start+6+9+17*(k-1)));
end
% Convert to our units standard.
spd = 4 * spd';
% Spline to desired wavelength sampling.
spd = SplineSpd([380 4 101], spd, S);
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