Need helping in setting a for loop for the below code

Hey all! So I'm implementing a code which essentially runs through the length of condIds (which is 1X1070 double) as follows. For further context to what the variable refer to, condIds refer to the image file used for a particular trial. I'm retrieving all possible trials in a bunch of files for one single condId (denoted by myTrials).

for ii = 1:length(condIds) 
    myTrials = find(condIds == condIds(ii)); % all trials matching the condition on trial ii
end

When I run the following code, it only loads myTrials for the last condId i.e 1070. WHy does it not iterate through each condId? Thanks in advance!

Answer 1

[David Hill]

u=unique(condIds,'stable');%not sure if you only want to go through the unique entries; otherwise, you will have duplicates
for ii = 1:length(u) 
    myTrials{ii} = find(condIds == u(ii)); %need to index into cell array
end