Mohammad Sami
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Contribute at least one answer each month for 24 consecutive months
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Solve all the problems in Indexing II
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Solve all the problems in Introduction to MATLAB problem group
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Content Feed
MATLAB app designer, how to update value of a property in declared callback function
You can try the following. configureCallback(app.arduino,"terminator",@app.readSerialData)
10 jours ago | 0
How to declare variable in App Designer
Do you mean you want to set the value of A equal to the value of edit field ? app.A = app.EditField.Value;
21 jours ago | 0
How to set defaults for GridLayout?
In this case I believe the only way to change the default column spacing is to edit the code shipped by matlab.
23 jours ago | 0
Static Java methods won't execute with parfor loop
The dynamic java class path is only modified in the process calling the javaaddpath. So for parallel you will have to add your j...
2 mois ago | 1
| accepted
How to change automatically generated uibutton properties in another function?
You can store all your buttons as an array in the app property orientationButtons. function create_buttons(app) % % make b...
2 mois ago | 0
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How to change training and plotting options when training a deep network?
From matlab documentation, you can only use this option if you specified validation data as well. https://nl.mathworks.com/help...
3 mois ago | 0
How to write our own Loss function in Deep neural network layers.
You can first check if the loss function is already available in Matlab here. https://www.mathworks.com/help/deeplearning/ug/de...
3 mois ago | 0
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Replace stale / repeating data with NaN in a table
You can try this. Var1 = [ 3 , 2, 5, 4, 4 , 4, 4, 6, 2, 3 , 5, 5 ,5 ,5 ]; i = Var1(2:end) == Var1(1:end-1); i = [false i]; V...
4 mois ago | 0
How to use parpool for independent expressions
You can use the parfeval function to make these calculations on a worker thread. x = 1; y =2; z=3; p=parpool('local',4) Fs...
4 mois ago | 1
| accepted
This is a part of a code and I want to add something to it, description below
In your code Heff(:,P==0) = []; %Delete User Row This will actually delete columns not rows in Heff. Not sure if that is what ...
4 mois ago | 0
| accepted
How to save output of double loop?
You should use the fullfile function to create the filepath. Your call to imwrite function is in the outer for loop, hence it wi...
4 mois ago | 1
| accepted
How to make a colourful interactive GUI spectrum slider?
While there is no slider object which have the spectrum as the background, you can however achieve this effect by layering uisli...
5 mois ago | 0
How to import and evaluate multiple files in matlab?
I am assuming all your data files have the same format. You should convert your current code into a function and call it 3 times...
5 mois ago | 0
Plot two functions with different pause rates at same time.
You can try something like plotting j every few steps. frames = 239; trunk = 2987; hold on lastjplotted = 0; for i = 1:tr...
5 mois ago | 0
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Onehotencode function is giving more columns which are filled with zeros than the number of categories.
Because you are converting the entire matrix in to a categorical matrix, the categories for the entire matrix are common. If you...
5 mois ago | 1
| accepted
Bring components to the front in app designer
If you only wish to display the image and not interact with it (eg zoom) then perhaps you can use uiimage to display your image ...
5 mois ago | 0
accessing tall cell arrays of type char
You will need to use gather function after you have completed all the operations on the data. a = tall({'aa' 'bb' 'cc'; 'dd' 'e...
6 mois ago | 0
Saving data in a GUI callback function
With app designer you don't need guidata and hobject to store your data. Create properties in your app and then you can access ...
6 mois ago | 0
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matlab app numeric box wont update real time
include the drawnow command in your loop to force an update to the UI. https://www.mathworks.com/help/matlab/ref/drawnow.html ...
6 mois ago | 0
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Subtract element one from element two in a 1x101 row vector.
You can use the subset from 1:end-1 and 2:end to calculate without using the for loop. t = rand(1,101); tsub = t(2:end) - t(1:...
6 mois ago | 0
Confusing warning during compilation: Warning: MATLAB preference entry "SMTP_Username" has been removed.
This is the correct behaviour for security reasons. Otherwise this information will be included from the previously set values i...
6 mois ago | 0
Delete outliers in each column of a matrix
You can simplify your code like this. % generate test data initmatrix = rand(100,100); initmatrix(12,99) = 1000; initmatrix(...
6 mois ago | 0
imwrite, what it does with fractions and negative values
You can change to using random integer function instead of rand function. Also change the image format to png instead of jpg. ...
7 mois ago | 0
Plotting data with 5 dimensions
How about you use the stacked chart as you intended and then just change the x axis to display the value of column D. data = [6...
7 mois ago | 1
| accepted
App designer Tab children automatic resize work on one tab but not the other on app Window resize
Are you using a uigridlayout inside the second tab ? The best way to ensure the desired resizing behaviour is to use uigridlayou...
7 mois ago | 1
| accepted
How to link x-axis of two plots in one single plot if they have diferent sizes
This Matlab example describes how you can overlay a second Axes object on top of another axes object. https://www.mathworks.com...
7 mois ago | 0
Help: Index that Falls above the lower variation limit if more than 50% of the data points in the following 20 point window are also above?
You should create a logical array which is true for a point which is above the limit. Then we use a moving sum with a kf = 20 an...
7 mois ago | 0
| accepted
Error using ismember function: Input A of class cell and input B of class cell must be cell arrays of character vectors, unless one is a character vector.
I suggest you keep your logic simple. just append the loop number in your filename, thereby avoiding the complicated logic altog...
7 mois ago | 0
| accepted
Different RMSE in Regression Learner App everytime I start a new Session
The partitions would be randomly initiated. You can set a random number seed before you begin, to try and get the same results. ...
7 mois ago | 0
read a variable in an app designer interface from a Matlab script
If you want to be able to access your app inside the script, first create and assign your app to a variable, then you can access...
7 mois ago | 0
| accepted
