find the difference of two structure elements

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Max Bernstein
Max Bernstein 2015-7-23
回答： Max Bernstein 2015-7-23
Hello,
I'm trying to list files in a directory and categorize them. The files have the naming convention as follow:
Slow3C(20150721-1245).txt
Slow3CGO(20150721-1245).txt
Slow3CLMMax(20150721-1245).txt
Slow3CLMMin(20150721-1245).txt
Slow3CTC(20150721-1245).txt
Slow3CTrig(20150721-1245).txt
What I did is:
daq_files=dir('*(*).txt'); % all DAQ files
TCdaq_files=dir('*TC(*).txt'); % all TC files
GOdaq_files=dir('*GO(*).txt'); % all GO files
LMMindaq_files=dir('*LMMin(*).txt'); % all LMMin files
LMMaxdaq_files=dir('*LMMax(*).txt'); % all LMMax files
Trigdaq_files=dir('*Trig(*).txt'); % all Trig files
maindaq_files=
which gives a list of all the files, and put the filenames with TC, GO, etc.. in their own structure. I want the maindaq_files to be Slow3C(20150721-1245).txt, so I'm trying to figure out if I can find the difference between daq_files.name element and all the other variables'.name element, but I'm a little stuck. Is ther a way to do this?
Thanks!

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采纳的回答

Jos (10584)
Jos (10584) 2015-7-23
编辑：Jos (10584) 2015-7-23
help setdiff
First put the names of the files into a cell array.
A = {daq_files.name} ;
B = {TCdaq_files.name} ;
Using the indices returned by setdiff you can select the elements from the original structure arrays returned by dir.
[~,ia,ib] = setdiff(A,B) ;
daq_files = daq_files(ia) ;
Something along these lines should work for you :-)

更多回答（3 个）

Jon
Jon 2015-7-23
Jon
Jon 2015-7-23
Max Bernstein
Max Bernstein 2015-7-23
Thanks Jos for your help, I figured it out using your hint. What I did was:
Alldaq_files=dir('*(*).txt'); % all DAQ files
TCdaq_files=dir('*TC(*).txt'); % all TC files
GOdaq_files=dir('*GO(*).txt'); % all GO files
LMMindaq_files=dir('*LMMin(*).txt'); % all LMMin files
LMMaxdaq_files=dir('*LMMax(*).txt'); % all LMMax files
Trigdaq_files=dir('*Trig(*).txt'); % all Trig files
All = [{TCdaq_files.name} {GOdaq_files.name} {LMMindaq_files.name} {LMMaxdaq_files.name} {Trigdaq_files.name}];
maindaq_files = setdiff({Alldaq_files.name},All, 'rows');
Jon I tried using what you suggested before but it wouldnt work because sometimes the filename changes so it's difficult to use a "constant" separator format such as \w-\w etc... Thanks a lot for your help though!

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