uigetfile function error when one file selected!
显示 更早的评论
can someone help me figure this one out?
I want to be able to browse for files and take the selected files in a loop like however i get an error "brace indexing not allowed" however, the code works if i select 2 or more files.
Brace indexing is not supported for variables of this type.
Error in m190507_model_vehicle_test_compare (line 45)
load(files_to_compare{i})
[files_to_compare,path] = uigetfile({'*.mat'},'MultiSelect','on');
for i = 1:1:length(files)
load(files{i})
采纳的回答
If you select >1 file, the output of uigetfile() is stored in a cell array which your for-loop is designed to handle. If you select 1 file, the output of uigetfile() is stored as a char array which your for-loop is not designed to handle.
What you want to do is change the char array to a cell array.
if ischar(files_to_compare)
files_to_compare = {files_to_compare};
end
Then enter your for-loop.
I'd add one more conditional to handle the event of selecting 0 files.
if isnumeric(files_to_compare) && isequal(files_to_compare,0)
return % quit the function
% error('User did not select any files.') % _or_ throw an error
end
4 个评论
ramez sabra
2019-5-13
Adam Danz
2019-5-13
Glad I could help.
laurent jalabert
2021-2-17
if isequal(files_to_compare,0) || isequal(path,0)
disp('User pressed cancel')
else
disp(['User selected ', fullfile(path, files_to_compare)])
end
Walter Roberson
2021-2-17
if ischar(files_to_compare)
files_to_compare = {files_to_compare};
end
can be replaced by the shorter (but slightly less efficient) code
files_to_compare = cellstr(files_to_compare);
更多回答（1 个）
Walter Roberson
2019-5-13
0 个投票
This is normal. uigetfile only returns a cell array if more than one file was selected. You can use iscell or ischar to test. And watch out for nothing selected which returns a numeric scalar.
Also you used the wrong variable names between the lines
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