"If sentence" error

Hi,

I have a problem. I want to rename some files and this is my code. The problem is the if sentence doesn't work at all. The result is always 21 and that's not possible. I've tried to change the operand & to && but it doesn't work neither.

myPath = 'C:\EXERCICES\'; 
a= dir (fullfile(myPath,'*.zip)); 
fileNames = { a.name };

    for k = 1:length(fileNames)
    n = num2str(fileNames{k}(4:9)); 

    if n >= 205040 && n < 208041 
        fileName = 18; 
    elseif n >= 203031 && n < 205030 
        fileName = 19; 
    elseif  n >= 199031 && n < 202030
        fileName = 20;
    else n >= 196033 & n < 198033; 
        fileName = 21; 
        end

xs= num2str(fileName);

    newFileName = [fileNames{k}(4:9) '_' fileNames{k}(10:16) xs '_gsd60_std' '.zip]; 
     movefile([myPath fileNames{k}], [myPath newFileName]);  
     end 
  if true
    % code
  end

Does somebody know what I'm doing wrong? Thanks in advance and regards,

Emma

Answer 1

[Arthur]

In your code, n is a string (you make it a string with num2str). In the if statement, you compare n with a number, so it will always be false... My guess is that you wanted to use str2num or str2double instead ;).

[Emmanuelle]

Thank you a lot Arthur, now it works with str2num! ;)