MATLAB: Error usind cd and fullfile

cdfullfile

Hello,
I want to go to a certain folder by using cd and fullfile to have the path. But I have an error when I do my third line of code (below) telling: Error using cd Argument must contain a string. Could you help me please ?? I really don't understand my mistake since fullfile('E:\Dropbox (LMD)\Noémie\SpO2 Project\AltiTrainer\', Foldernames(i)) for i=1 gives me the right path !
    Foldernames = cellstr(char('John', 'Peter', 'Jack')
    for i= 1: length(Foldernames)
        cd(fullfile('E:\Dropbox (LMD)\Noémie\SpO2 Project\AltiTrainer\', Foldernames(i)))
        Filenames(i) = dir('*_modif.csv');
        A = readcsv(Filenames(i));
    end
Thank you very much for wour answer !
NoNo

Best Answer

Hi,
since Foldernames is a cell array you need to use {} for access to elements. Replace
cd(fullfile('E:\Dropbox (LMD)\Noémie\SpO2 Project\AltiTrainer\', Foldernames(i)))
by
cd(fullfile('E:\Dropbox (LMD)\Noémie\SpO2 Project\AltiTrainer\', Foldernames{i}))
Foldernames{i} is a string, Foldernames(i) is a 1x1 cell array. And fullfile wants to receive a string, not a 1x1 cell ...
Titus
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