MATLAB: Plotting multiple text files columns in the same graph

columnsgraphMATLABmultiple filesplotrowstext;txttxt filetxtx

Hi guys, I have about 25 files consisting of 300 rows and 3 columns.
I'd like to plot the first column of each file in the same graph. Is it possible?
Thanks in advance !

Best Answer

workDir = 'C:\Users\gabri\Desktop\Nova_pasta\Arquivos_Saida_Imex';
delimiter = '\t';
startRow = 6;
%your description says three columns, your code says four, your previous format implied their might be more
formatSpec = '%f%f%f%f';
for i = 1:25
  this_subdir = sprintf('%d', i);
  filename = fullfile( workDir, this_subdir, 'arqanepi.rwo');
    %%Open the text file.
    fileID = fopen(filename, 'rt');
    dataArray = textscan(fileID, formatSpec, 'Delimiter', delimiter, 'HeaderLines', startRow-1, 'ReturnOnError', false);
    %%Close the text file.
    fclose(fileID);
    %%Allocate imported array to column variable names
    days(:,i) = dataArray{:, 1};
    Oil(:,i) = dataArray{:, 2};
    Gas(:,i) = dataArray{:, 3};
    Water(:,i)= dataArray{:, 4};
end
plot(days(:,1), Oil)
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