Error usind cd and fullfile

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

Answer 1

[Titus Edelhofer]

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

[Titus Edelhofer]

BTW, I assume your first line is due to some simplification. Otherwise simply write

Foldernames = {'John', 'Peter', 'Jack'};

[NoNo]

Thank you very much !! and yes, I simplified the Fordernames ;)

[Titus Edelhofer]

Your welcome. You might mark the question then as answered, if you like.