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Mohammad Sami


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413 total contributions since 2014

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Answered
Code source for mathworks tutoriel video (Face Recognition with MATLAB)
It's published on file exchange. you can get it from there. https://www.mathworks.com/matlabcentral/fileexchange/68985-real-tim...

1 day ago | 0

Answered
Vectorizing Table in Structure without Loop
Are the Tables T1, T2, Tn compatible with each other, meaning they have the same column definitions. Are the only data in the s...

14 days ago | 0

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Answered
Frame must be 1464 by 834 but why ?
In that case perhaps you can try writing the image directly to the video, instead of using getFrame with imshow. imgFiles = dir...

15 days ago | 1

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Frame must be 1464 by 834 but why ?
The video frame size is set by the first frame that you write. From the documentation. "The writeVideo method sets values for...

20 days ago | 0

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Send and Recieve data between client and workers
Moved to answer. Ok after some experimentation this seems to work. If the queue are created in the main thread they can only be...

30 days ago | 0

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Answered
How do I prove that javaObjectEDT and javaMethodEDT are indeed being run on EDT?
Your invocation of Thread.currentThread is executed in the matlab main thread not on EDT. Do as follows. t = javaMethodEDT('cu...

1 month ago | 0

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Answered
how to convert table with struct to excel sheet
Not really sure about what your data looks like. Assuming your structs are compatible, you can concatenate them together. s = v...

1 month ago | 1

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Answered
How to replace the values of a column of a variable with another column from another variable in matlab?
You can do as follows if you want to maintain it as struct array. b = [network.FID_1]; a = [sedsource.FID_Networ]; [lib,loca]...

1 month ago | 0

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Answered
matlab can't call matplotlib
Based on this Answer from Matlab staff : https://www.mathworks.com/matlabcentral/answers/551710-matlab-crashes-when-using-py-ma...

1 month ago | 0

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Answered
How to stop subsequent plots outputting to the current pane?
To force MATLAB to create new figure, you need to call figure function before calling the plot.

1 month ago | 0

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App designer - using a single variable to return multiple indices
Change it as follows ROI(app, positionVector{i,:}); %row i, all columns

1 month ago | 1

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Json Parsing error on formatted text
I assume this is the api you are using. https://docs.github.com/en/rest/reference/repos#create-a-release On the documentation ...

1 month ago | 0

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How can I Run the Code On Multiple data Files (.txt) sequentially from a folder
From your question I assume that you want to essentially read all the files, not just 10-20 files. You can essentially use uige...

2 months ago | 0

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read table without having reading the directory path
You can have the user select the file to process using the function uigetfile [file,path] = uigetfile(); if isequal(file,0) ...

2 months ago | 0

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Generate efficiently an array of all combinations of a range of elements
You can try the following. [x1,x2,x3,x4] = ndgrid(0:3,0:3,0:3,0:3); allpossible = [x1(:) x2(:) x3(:) x4(:)];

2 months ago | 0

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Answered
Looping through mulyiple variable with names+numbers
You should use cell arrays to store your data. For example. Arms = cell(25,1); for i=1:2:25 Airms = Arms{i}; end

2 months ago | 0

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how to create mouse movement event on UIAxes in APP Designer to catch cursor location on the axes?
You can set the callback WindowButtonMotionFcn on the app.UIFigure. https://www.mathworks.com/help/releases/R2020b/matlab/ref/m...

2 months ago | 0

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How can we run a loop to stack data for each day in both years (use 12 hours in each day)?
I am assuming this is a struct. Also assuming that data in NCF is the same size. %convert to table. % mydata = struct(); t = ...

2 months ago | 0

Answered
How do I add a radio button to the button group?
You can just select one of the radio button, copy it and then paste it back. Thereafter re position the button in the button ...

2 months ago | 0

Answered
Move value at index i from one array to another array but at index 3 * i
You can also do it this way. a = [1 2 3]; b = [a; zeros(2,size(a,2))]; c = reshape(b,1,[]); c(end-1:end) = []; or as follow...

2 months ago | 0

Answered
Compare files present in excel file with the files present in a folder,if match found copy them into a new folder
You can load your excel file using the readtable funtion. myexcel = readtable('myexcel.xlsx'); You can the use the dir functio...

2 months ago | 0

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Answered
Change the event of one button as another is pressed in matlab app designer
Instead of using a fixed string value in your function. create a property in your app and use that. you can then modify its val...

2 months ago | 0

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Replacing all even numbers in my matrix with their square root value
You need to assign it back to A to replace the even values. A=[1 4 9; 8 16 7; 3 36 4]; i = rem(A,2)==0; A(i) =sqrt(A(i))

2 months ago | 0

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Answered
Regexp for only numbers and "dots"
You can use a regex like the following. this one will catch all digits and dots. The ^ in beginning and $ at the end ensure that...

2 months ago | 0

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Detect variable overflow in matlab code
The following should work. i = uint8(0); for j = 1:10000 temp = randi(255,'uint8'); % test if temp is bigger then the diffe...

2 months ago | 0

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Answered
App designer - How to index multiple variable names?
You should add a private property called AllLamps. Then add startupFcn to define this property. % Code that executes after comp...

2 months ago | 0

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Answered
Matlab standalone exe closes after calling another Matlab exe from it
I would suggest, don't use timers in the first exe. Use while loop with some exit condition and a pause instead of timer. % fir...

2 months ago | 0

Answered
Reading csv files starting from a different row
You can use the import options to change the behaviour of the readtable function. a = delimitedTextImportOptions('VariableNames...

3 months ago | 0

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Answered
Change the binary number of a specific group of matrix elements by switching from zero to one and vice versa
If your data is int / uint, you can use the function bitcmp to get the bitwise complement. a = uint8(1); b = bitcmp(a); dec2b...

4 months ago | 0

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Answered
How to pass variables within App Designer to be saved to file
You can access the "Value" property of the edit fields to get the associated text / numeric values. Your code will be inside ...

5 months ago | 0

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