Promble creating a variable with loop

Hello guys. I want to implement this code:

[nii_file,pathname] = uigetfile('*.nii','Select Time Points','MultiSelect','on')

if isequal(nii_file, 0)
   disp('User selected Cancel')
   return;
end

for k = 1:length(nii_file)
 a.(nii_file{k}) = niftiread(nii_file{k});
end

but it gives me the error: Invalid field name: 'FileName.nii'.

The files '.nii' are matrices of 128x128x128 int16

Can it be done by this method?

Regards

Answer 1

[Walter Roberson]

Use fileparts() to strip off any directory and suffix.