Read one specific file name

Question

Damith 2015-4-24

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https://ww2.mathworks.cn/matlabcentral/answers/213429-read-one-specific-file-name

编辑： per isakson 2015-4-24

Hi,

I have "TRMM_2000_01_01_newntcl.csv" and "TRMM_2000_01_0108_newntcl.csv" files in the same folder. I need to read ONLY "TRMM_2000_01_01_newntcl.csv" file but the following code reads both.

Any idea?

cd ('C:\Users\<path>')
d=dir('TRMM_*_newntcl.csv');
ymdh=cell2mat(textscan([d.name], ...
            'TRMM_%4d_%2d_%2d_newntcl.csv', ...
            'collectoutput',true));

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Answer 1

Image Analyst 2015-4-24

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https://ww2.mathworks.cn/matlabcentral/answers/213429-read-one-specific-file-name#answer_176594

Use d(1).name to take the name of the first index, i.e., the first structure in the structure array.

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Damith 2015-4-24

It does not do any difference. Output is still the same.

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Answer 2

per isakson 2015-4-24

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https://ww2.mathworks.cn/matlabcentral/answers/213429-read-one-specific-file-name#answer_176608

在 MATLAB Online 中打开

Replace

d=dir('TRMM_*_newntcl.csv');

by

d=dir('TRMM_*01_newntcl.csv');

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per isakson 2015-4-24

编辑：per isakson 2015-4-24

在 MATLAB Online 中打开

Your question wasn't possible to answer. You provided too little information. Now you add a new requirement.

Idea

formulate a rule that matches all files you want and which discriminates the rest. In your comment you tell which shall be matched, but not which should discriminated against.
you will find that your rule cannot be met by dir in combination with a wildcard. Something else is needed. Try replace

d=dir('TRMM_*_newntcl.csv');

by

    sad = dir('TRMM_*_newntcl.csv');
    cac = regexp( {sad.name}, '2000_[01]\d_[0-3]\d_' );
    ism = not( cellfun( @isempty, cac ) );
    d   = sad(ism);