Madheswaran - MATLAB Central
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Madheswaran


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MATLAB AnswersFrom 07/24 to 03/25Use left and right arrows to move selectionFrom 07/24Use left and right arrows to move left selectionTo 03/25Use left and right arrows to move right selectionUse TAB to select grip buttons or left and right arrows to change selection100%

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Answered
how to include COM API in m scripts?
Hi Ghamdan, You can use 'actxserver' to creates a local OLE Automation server, where 'progid' is the programmatic identifier (P...

10 days ago | 0

Answered
Unsolved external symbol in C++ interface build
Hi @Hiroyuki Kobayashi I think the problem you are facing is because of a compiler mismatch between the one used to build your ...

13 days ago | 0

Answered
clibgen can not generate operator() in the C++ matrix class.
Hi @Son Tung Dang As of R2024b, MATLAB Interface for C++ doesn't support overloaded operators. You can see the list of limitati...

13 days ago | 0

Answered
Why can't I open Matlab, but I get "Unable to communicate with the required Mathwork service (Error 5201)." How to solve this?
Hi @明慧, This error suggests that MATLAB is experiencing a licensing problem. To resolve this error, you can try the following s...

13 days ago | 0

Answered
Python calls MATLAB built-in function griddedInterpolant(), how do I get the value of the query point?
Hi @xaofeng he The problem you are facing is because MATLAB objects (like griddedInterpolant) cannot be called directly in Pyth...

15 days ago | 0

Answered
mex compilation not working?
Hi @cui,xingxing The error you are facing is because both mex.hpp and MatlabEngine.hpp define the same enumeration matlab::engi...

16 days ago | 0

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Answered
MATLAB not finding its own library
Hi Scott, To build an engine application using MEX, you need to specify the '-client engine' flag when calling the 'mex' comman...

16 days ago | 0

Answered
PNG file saving in power point presentation
Hi Joydeb, To display all the images in a single slide, you need to define specific positions for each image in a 2x2 grid layo...

1 month ago | 0

Answered
Microsoft Word Check Box
Hi Thomas, MATLAB provides a powerful way to automate Microsoft Word operations through the ActiveX interface. Here's how you c...

1 month ago | 0

Answered
how to run .mlapp with Runtime?
Hi Cristiano, You can use the MATLAB Compiler to package the '.mlapp' file to standalone executable app. Here is steps to achi...

1 month ago | 0

Answered
Replace an image in existing powerpoint with .jpg
Hi Sarah, You can automate PowerPoint using MATLAB's ActiveX interface to replace both images and text across multiple slides....

1 month ago | 0

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Answered
How to read and show image from database?
Hello Fatimah, If you're utilizing a relational database such as MySQL to store images in BLOB (Binary Large Object) format, yo...

1 month ago | 0

Answered
tiledlayout doesn't behave as it should
Hello, When a figure is created in MATLAB, it automatically assigns default position values based on your screen size. If these...

1 month ago | 0

Answered
Unable to perform the harness operation for the externally saved test harness since the directory is not writable
Hi Flavio, I have came across similar error once. I checked the permissions with 'fileattrib' command, and noticed that value ...

2 months ago | 0

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Answered
Is it possible to have a uiconfirm choose an option after a timeout period?
Hi @Ryan You can achieve a timeout by using 'dialog' function. Consider the below code: function showTimeoutDialogMini() ...

2 months ago | 0

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Answered
track the position of the mouse cursor
Hi Rukhsar You can use 'get(groot, "PointerLocation") to get the current location of the cursor. Consider the following code fo...

2 months ago | 0

Answered
Read data from the built-in MATLAB web browser
Hi John, Apart from using the built-in web browser as described in the answer link you posted, you can do the following. If yo...

2 months ago | 0

Answered
Call to download server failed (HTTP error code: 403)
Hi Andie, The workaround suggested by the MathWorks techinical support is to replace 'https://' with 'http://' for the MATLAB ...

2 months ago | 1

Answered
generate random numbers among each non zero column elements
Hi Chaoyang, Based on your reply to Jonas, I understand that you would like to get one random row index of any non-zero value ...

2 months ago | 1

Answered
Save image to a new word document
Hi Miguel, You can use MATLAB's 'actxserver' to interact with Microsoft Word to achieve your desired task. Below is a minimal e...

2 months ago | 0

Answered
Failed to run led demo in external mode at the raspberry pi 4B with simulink
Hello Chen, Upon reviewing the error log, it appears that the file 'tmwtypes.h' cannot be located during the code build process...

2 months ago | 1

Answered
how to halt a for loop in an external function called from mlapp by using a stop button in the mlap app
Hi Andrew, The error occurs because MATLAB functions can't automatically access properties of the App object unless you explic...

2 months ago | 0

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Answered
Changing Pushbutton BackgroundColor for 0.1 second
Hi Day Hong Kim, To change the background color of a push button, you can adjust the 'BackgroundColor' property. If you intend ...

2 months ago | 0

Answered
Extracting sub matrix from sparse matrix
Hello Daniel, You can access elements of a sparse matrix using the syntax 'S(I, I)', where I is an array of indices and 'S' is ...

2 months ago | 0

Answered
Finding Indices of Duplicate Values to create a new array
Hi David, You can use 'unique' function in MATLAB to get the unique categories in the 'Region'. After that, I have used logica...

2 months ago | 0

Answered
How do I connect between the Simscape Specialized Power System blocks to simulink blocks?
Hi @Varun, You can directly connect Simscape Specialized Power System blocks with Simulink blocks, without the need of any conv...

3 months ago | 0

Answered
one multiplot figure instead of many partially filled figures
Hi @Elzbieta The behavior you are facing is because you are saving figure (using 'saveas') inside the loop. Each 'saveas' call ...

3 months ago | 0

Answered
simulation of the target
Hello @bouchra turki To achieve a seamless transition between the 'rectangular' and 'circular' sections of your plot, consider ...

4 months ago | 0

Answered
I have a txt. file used in a function. I need a variable in the txt. file to cycle through different values (for loop), and the function needs to run for each value.
Hi @Cornelia, You can read and evaluate the text file, without modifying/cleating a new text file with the following approach. ...

4 months ago | 1

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Answered
webwrite returns status 405 "Method not Allowed"
Hi @Lane Bekow, I assume that you would like to get the X-Ray properties of the different elements from https://henke.lbl.gov/...

4 months ago | 0

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