As the uigetfile documentation clearly states, "If 'MultiSelect' is 'on' and you select more than one file in the dialog box, then FileName is a cell array of strings"
So when you select multiple files, your variable filename is a cell array of strings. And fnlvsgl (whatever this is) clearly only works with strings.
This means you need to write your code to consider three cases:
- 0 output when the user select no files.
- string output, when the user selects one file.
- cell array of strings output, when the users selects multiple files.
Something like this:
tmp = uigetfile('*.m','Select file','MultiSelect','on');
assert(ischar(tmp)||iscell(tmp),'no file selected') % 0 output
if ischar(tmp) % char output
tmp = cellstr(tmp);
end
% preallocate output cell arrays:
fsC = cell(size(tmp));
paraC = fsC; xC = fsC; yC = fsC;
% loop over file names:
for k = 1:numel(tmp)
disp(tmp{k})
[xC{k},yC{k},fsC{k},paraC{k}] = fnlvsgl(tmp{k},0);
end
Summary: read the documentation: it tells you what MATLAB functions do, and how to use them.
