indexing data before and after sort

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Housam 2019-5-18

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关闭： Housam 2019-5-20

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Hello, I need to plot data from a significant number of text files that have the same last digit in their name. My attempt is in the following code. Indexing to the sorted numeric value of the text file name alone does not suffice to get the full path of the text file. Therefore, I need to also find the corresponding non-numeric value of the text file before sorting then join the two parts to get the content of the similarly named text files. I really appreciate the help.

A = { 'C:\MATLAB\folder1_txtfilename_Num_1.txt' ,
      'C:\MATLAB\folder1_txtfilename_Num_2.txt' ,
      'C:\MATLAB\folder1_txtfilename_Num_3.txt', 
      'C:\MATLAB\folder2_txtfilename_Num_1.txt', 
      'C:\MATLAB\folder2_txtfilename_Num_2.txt', 
      'C:\MATLAB\folder2_txtfilename_Num_3.txt'};
for ii = 1:numel(A)
h1{:,ii} = strsplit(A{:,ii}, 'Num')     % seperate the text file name
txt1{:,ii} = h1{1, ii}{1, 1}            % get the ~numeric value of the text file name
txt2{:,ii} = h1{1, ii}{1, 2}            % get the numeric value of the text file name
[txt2_sorted,I2] = sort(txt2)           % get sorted array and its index
end
% find all txt files with same number in txt2_sorted: 
for ii = 1:numel(A)
I00 = txt2_sorted'
dd(ii) = cellfun ( @strcmp, I00(1), I00(ii) )
data1 = txt2_sorted(dd)
end
% find the