MATLAB Answers

how to load a function in AppDesigner?

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Medical Imaging
Medical Imaging on 18 May 2020
Commented: Medical Imaging on 28 Jul 2020 at 18:09
I am a beginner to appdesigner and i am trying to design my matlab code to load some data which is
load([PTH '/Data.mat']);
the warning I am receiving is "To avoid conflicts with functions on the path, specify variables to load from file." How can I remove thes warning.

Accepted Answer

TADA on 18 May 2020
Seems to me that the warning is warning you against loading data into the workspace without controlling the variable names. Try to use an output variable so that the data is returned as a struct into that variable instead:
data = load([PTH '/Data.mat']);
% and while your at it, also use fullfile
% instead of concating, to make your code
% work on other platforms as well
data = load(fullfile(PTH, 'Data.mat'));


Medical Imaging
Medical Imaging on 28 Jul 2020 at 17:04
Thank you. Could you help me with another issue in same script. At below line, I am getting error: "Dot indexing is not supported for variables of this type." what could be the possible reason?
fprintf(' Select the map. \n')
app.idx = listdlg('ListString', {sFOLDERS(:).name}, 'SelectionMode', 'single', ...
'ListSize', [160,90]*4);
TADA on 28 Jul 2020 at 17:25
The problem is either with sFOLDERS or app.
One of them is not what you think it is in the particular workspace where this code is running.
You should debug this and inspect these variables on runtime. Either place a breakpoint in that position, or activate the pause on error option, then run your program and activate this method.
Also, concating the folder names into a cell array like that is meaningless, as placing a comma separated list between square or curly bracers is horizontal concatenation.
% these two lines of code
% give identical output
% but the first one is confusing
% and moreover, Matlab doesn't
% appreciate command chaining much
% so it's also an opening for
% future mishaps
C1 = {sFOLDERS(:).name} % this won't be a column cell array after all
C2 = {}
And last but not least, this is a new issue, so you should probably have opened a new question for that one rather than adding a question on an answered thread which won't attract the attention of the forum problem solvers. And also won't show up in future searches
Medical Imaging
Medical Imaging on 28 Jul 2020 at 18:09
Thank you. it is sbout the initialization of sFOLDERS separately.
I understand it and will post as new question if thread question relevance.
I appreciate.

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