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Replacing "dir" when deploying a GUI
Try this: if isdeployed a = dir(fullfile(ctfroot, '**', '*.xlsx')); %remove '**' if you know a precise folder location...

7년 초과 전 | 0

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Is it possible to use a function with 2 outputs and sometimes with 4 outputs?
See this example function as a starting point for how to make functions with variable input/output, and to do a input/output che...

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Problem loading files to standalone installer when deploying a GUI as application
mcc -m myGUI.m -a ./MyExcelDir %This compiles your GUI AND add all files + subfolders specified after "-a" If using a...

7년 초과 전 | 0

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Why i am getting this error message
The error you're getting is probably caused by an invalid/empty string in handles.edit4. And DON'T use |eval|, esepecially in a ...

7년 초과 전 | 2

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How to use variables from my GUI in my function?
Seems like you're using GUIDE? You have to uncomment the |uiwait(handles.figure1)| in the |OpeningFcn|. Otherwise your GUI wi...

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How can I use an if statement to compare an input in a function script?
Your |cell_num_mem_1| was never defined before the |if| statement. What is the value of this variable, or is it a function that ...

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Is there a way for a GUI to be created based on input on another GUI?
You'll have to hard code a variable GUI then. <https://www.mathworks.com/help/matlab/ref/uicontrol.html> (moved from the comm...

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Why doesn't legend location have "center"
Good point. Maybe because almost everyone do not use legends in the middle of a graph. The graph should highlight your data, not...

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Error in logistic regression code
Your code does grow X by 1 column of 1's. See below data=xlsread('MyData'); X = data(:, [1:18]); y = data(:, 19) ...

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Looking for advice on data analysis
Depends on the quality of the data. This doesn't seem like Matlab issue though, other than the fact you might be needing Statist...

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MATLAB: How do I generate all square matrices (nxn) which meet these requirements?
N = 10; Mat = tril(ones(N), -1); Idx = find(Mat); %This gives you the index of a lower triangle. choose k = 1:sum(Mat) o...

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Matlab writes junk #N/D in Excel file
Either specify the exact excel range to write to, or don't specify it at all. Xsig = rand(10, 2); xlswrite('test.xlsx', ...

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I've got an error in my Matlab looks like a bug
<https://www.mathworks.com/help/matlab/matlab_prog/floating-point-numbers.html> Look at *"Avoiding Common Problems with Floatin...

7년 초과 전 | 1

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How can I convert the following to a vector
G = {20 15 4.5}; G = [G{:}];

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How to request user input to save figure? uiputfile command does not create the file after clicking 'Save'
The |uiputfile| only creates the filename and filepath based on where the user wants to save the file. You need to actually writ...

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Adding functions in a for loop
Error is caused by adding a function handle to a value returned by a function handle. They're different things. Y = y(x) + ...

7년 초과 전 | 0

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Help with conidtional loops?
Keep track of how many games and how many trials were done, and the status of the game as WonGame = 0 or WonGame = 1. %% Gu...

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Is there a one-line way of vectorizing a matrix across rows?
A = reshape(A', 1, numel(A));

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Display as red specific cells of binary image
ImBW = rand(100)>0.5; %binary image ImROI = zeros(100, 'logical'); %area you want to show as red ImROI(25:50, 25:50) =...

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Remove cell array rows based on logical condition?
[Num, ~, Raw] = xlsread('yourdata.xlsx'); I = Num(:,20) == 1 | Num(:,20) == 7; %Your logical index of weekends W...

7년 초과 전 | 1

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How can I reduce the memory footprint of Matlab
I'd still try increasing the swap space because IF the program rarely goes over 64GB, then you get the benefits of 16 cores *"mo...

7년 초과 전 | 0

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Problem in Using Parallel Feature for a "For Loop"!
X has to be sliced correctly. <https://www.mathworks.com/help/distcomp/sliced-variable.html> But I didn't realize Newton Raph...

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Create single structure array with variables in for loop.
%Creating some example files storing example x's for k = 1:10 x = rand(3); save(sprintf('myfilename%d.mat', k...

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Find index in 3D matrix for maximum value
Here's one example to find maximum value in a 3D matrix called A A = randi(100, 3, 3, 50) [x, y, z] = ind2sub(size(A), f...

7년 초과 전 | 0

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Function handle in a if statement
You cannot use an inequality for a function handle, as it makes no sense. Condition = @(a,T) T_g + delta_Tg; if isoTemp >...

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"valid indices for 'a' are restricted in PARFOR loops" for unindexed struct?
parfor k = 1:2 a(k).b = k; end The reason |a.b = k| does NOT work is because when the parfor finishes, and there a...

7년 초과 전 | 2

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Error using fprintf Invalid file identifier. Use fopen to generate a valid file identifier.
It seems that |gn| includes a folder path + file name. If the folder path does not exist, then |fopen| will fail. To fix, make t...

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VideoReader in App Designer
I'm guessing you're familiar with callbacks in app designer? If not, here's the tutorial. >> appdesigner.internal.applicati...

7년 초과 전 | 0

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Concatenate layered matrix into one layer
a = randi(10, 2, 133, 5); b = reshape(a, size(a, 1), size(a, 2) * size(a, 3));

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Why this Error: Object returned error code: 0x800A01A8 is appear?
My guess is this is caused by the loss of write access to your file. To prevent both Excel and Matlab from trying to edit the sa...

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