Matlab not recognizing string variable

Question

I have a variable that is holding a string (the string contains a path to a .mat file). However whenever I call load the variable I get an error saying "Error using load Unable to read file"

Here is my code where I call load:

fName = strcat(fName,'_features.mat');
display(fName);
load(fName);

For those curious fName = '/Users/MATLAB/10360453085_p2_features.mat'

Why am getting an error on load even though when I copy the value of fName into load it works perfectly fine, but using load(fName) gives me an error?

It comes from an array that contains a list of paths. The array is declared as follows: imnames = {} — user2604504
– user2604504, Commented Feb 10, 2014 at 6:07
I ask because you use fName to create an fName. Are you sure that value of fName before strcat is correct? — Marcin
– Marcin, Commented Feb 10, 2014 at 6:26
He does display it and says it's correct. Isn't there a drive letter missing though? Then again, in that case, manually copying the value into load shouldn't work either. — scenia
– scenia, Commented Feb 10, 2014 at 9:17

Jonas · Accepted Answer · 2014-02-10 06:54:05Z

1

Most likely, fname is initialized somewhere as a cell array. strcat will therefore return a cell array, so that disp will display it as 'name' rather than name.

load(fName{1})

or

load(char(fName))

will work in this case.

answered Feb 10, 2014 at 6:54

Jonas

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2 Comments

sebastian Over a year ago

That wouldn't create a "Unable to read file" error though - as far as I know.

Jonas Over a year ago

@Sebastian: yes, you're right. There may be multiple problems here.

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