remove double indexvalues in loop

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Dion Theunissen
Dion Theunissen on 25 Feb 2021
Commented: Bob Thompson on 26 Feb 2021
I have a script where I take the maximum values out of a matrix for each column. I am using the index of the max value to get that one.
Sometimes indexmax is more then 1 value. That is the moment that i only need the highes value of A(:,e)
Now I want to avoid that i am using 2 times the same index. I want to use that index just once for the highes match.
for e = 1:length(RawDatafile)
for f = 1:length(CLfile)
for g = 1:IndRD
percentage = (100/length2)*length3;
A(f,e) = percentage;
indexmax = find(A(:,e)==max(A(:,e)));
% this is the place where i need to add a while loop or something to avoid a double used index later in the script.
%something like
%if indexmax(e) == used earlier
% use maximum highes value of (A(indexmax(e)))
I tried the indexmax(1) but on that way its using just the first index and not the one he didn't use before.
Bob Thompson
Bob Thompson on 26 Feb 2021
Ah, ok, I think I better understand now. I recommend a check to see if the value is already within indexmax.
idm = find(A(:,e)==max(A(:,e))); % Find index of max values
idm = idm(~ismember(idm,indexmax)); % Remove indices already recorded
indexmax(e) = idm(1); % Record next index

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