How to select a file based on the filename?

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Rita 2015-8-17

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https://ww2.mathworks.cn/matlabcentral/answers/234264-how-to-select-a-file-based-on-the-filename

评论： Walter Roberson 2015-8-19

Hi, I have several files and I want to just select one based on the maximum number which I could find on the file name. For example I have

    abcEFG_1all_0.0675_0.2035.mat
    abcEFG_1all_0.087534_0.40354.mat
    abcEFG_1all_0.167534_0.603123.mat

and I just want to select and work on this file

abcEFG_1all_0.167534_0.603123.mat

because the numbers are higher than the others. Any suggestion would be appreciated in advance.

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Walter Roberson 2015-8-17

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https://ww2.mathworks.cn/matlabcentral/answers/234264-how-to-select-a-file-based-on-the-filename#answer_189547

http://www.mathworks.com/matlabcentral/fileexchange/47434-natural-order-filename-sort

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Rita 2015-8-19

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Hi Walter, I stuck in this script I followed your answer but for this one I get the error.I really would appreciate if you could solve my problem. I have

    net1_0.2327.mat
    net1_0.3425.mat
    net2_0.8765.mat 
    net2_0.6754.mat ,......to net50_0.87654.mat

I would like to get these net1_0.3425.mat net2_0.8765.mat ,.... the max of each net1 to net net50(comparing net1 with net1 and net2 with net2 and so on) I used your script

dinfo = dir('net*.mat');        
    filenames = {dinfo.name};
    parts = regexp(filenames, '_', 'split');
part2 = cellfun(@(C) C{2}, parts, 'Uniform',0);
parts3 = regexp(part2, '.mat', 'split');% to remove mat extension
val2 = str2double(parts3)% I get NaN instead of numbers!