MATLAB: Matlab Mutiple Text Files, Plot

MATLABtext files

can anyone please help me with this questions?
I plotted multiple files using the two while loops in the Matlab Editor –> run,but when I tried to plot the files using GUI pushbutton, I got this error message for some of the files..
Error using plot Vectors must be the same length.
fid= fopen([FilesToRead, MultipleFiles]);
    Block=0;
    while true
        tLine = fgetl(fid);
        if ~ischar(tLine) 
           break;
        else
            headerCells = strsplit(tLine,' ');
            if length(headerCells) > 1
                if ~isempty(headerCells{2})
                    if ~strcmpi(headerCells{2},'!user') && ~strcmpi(headerCells{2},'data')
                        textForGUI = headerCells{2}
                    end
                end
            end
        end
        if ~isempty(strfind(tLine,'data'))  
          Block=Block+1;   
         fprintf('\n\nBlock: %s\n\n', num2str(Block));  
         formatSpec = '%f %f %f %f %f';       
         C = textscan(fid,formatSpec,24,'CommentStyle','data','Delimiter','\t');
         %here I got some calculations and plots
          % I have for loop to handles indexing
end
end
end

Best Answer

Well, the error message is very clear:
 Error using plot. Vectors must be the same length
 Error in [..] plot(Column4, CalcValue(:,1), '-rs');
Column4 and CalcValue(:, 1) are not the same length. That is the basic problem.
Note that if CalcValue has more than one column, then the line
Column4(end:end+numel(CalcValue)-numel(Column4))=nan;
is guaranteed to make Column4 longer than CalcValue(:, 1). Perhaps you meant:
Column4(end:end+size(CalcValue, 1)-numel(Column4))=nan; add as many nans as there are extra rows in CalcValue
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