Sean de Wolski

MathWorks

Active since 2004

I like to be outside. But if I'm inside, I like to be using MATLAB.

I'm a Senior Application Engineer at MathWorks and civil/structural engineer by education.

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Answered
When there's an error in a function triggered by Appdesigner, how to stop execution before app management?
dbstop if caught error

15 days ago | 0

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Answered
Fill background pixels with the value of the nearest foreground pixel
Hi Matt, The second output from bwdist is the index of the closest pixel. I think this is all you need to then index back. [~...

17 days ago | 0

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Answered
How to activate bubble chart
Bubblechart was added to core MATLAB in R2020b. You'll need to upgrade to this release or find a variant on the file exchange.

18 days ago | 1

Answered
Restore old editor in R2021b?
I changed these settings and it greatly improved the font for me: s = settings; s.matlab.fonts.custom.editor.FontToUse.Persona...

23 days ago | 0

Answered
Adding bulleted list to PowerPoint using MATLAB Report Generator
The template should not be a pptx file but a potx file.

24 days ago | 0

Answered
Convert String to numbers
s = ["0001" "0002"] n = double(s)

1 month ago | 0

Answered
MATLAB App Testing - Confirmation dialog boxes
You can dismiss and alert but not a confirmation dialog yet. Capability for alerts added in 21a. https://www.mathworks.com/h...

1 month ago | 1

Answered
Code conversion using matlab coder
Being pedantic, you should NOT be using scripts but functions for everything. So step 1 is convert everything to functions. Re...

1 month ago | 0

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Answered
removing an entire row
grace = s(s(:,3)~="fred",:)

2 months ago | 0

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Answered
How to trigger an App Designer UI component's callbacks programatically, like `notify()`
Do you want to do this in the scope of testing, or to reuse the functionality of the button callback? For the former, look at m...

2 months ago | 0

Answered
How to implement an API REST POST in Matlab
Look at either: weboptions('RequestMethod','post') or doc webwrite

2 months ago | 0

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Answered
2d interpolation of n-dimensional data
You can just change the Values of one scatteredInterpolant object. It won't have to redo the expensive underlying triangulation...

2 months ago | 0

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Answered
Why does this example from MathWorks work on Windows but not on Mac?
which -all plot It's not win v. mac but that you've shadowed plot on the failing machine.

2 months ago | 0

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Answered
which one is better?deep learning toolbox or matconvnet
Matconvnet hasn't been updated in 3 years. Deep Learning Toolbox has dozens of full time staff working on it, improving it, and...

2 months ago | 0

Answered
How to become a staff if you are among the big potatos of mathworks in the answer community?
Hi Wan Ji, I'd be happy to refer you to a MathWorks position. I got my referral from someone who observed me answering questio...

2 months ago | 0

Answered
Pattern Search Stopping Criteria
You can use an outputfcn for this. The output function can pass back a stop flag. https://www.mathworks.com/help/releases/R202...

2 months ago | 0

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Answered
Calling MATLAB class functions from Python with matlab.engine
MWE works for me. Specify nargout, and make sure your directories are on the path (strongly recommend using Projects for this, ...

2 months ago | 0

Answered
uitable with latex or greek letters
You could use a uihtml component with an embedded table. Of course this table will not be interactive, but if it's for display ...

2 months ago | 0

Answered
Set value for elements within a polygon
Something along this line will work too. Note, you may need to deal with x/y v. row/col indexing (swap meshgrid for ndgrid). d...

2 months ago | 1

Answered
How to create a map mask using coordinates
What is your end goal? You need to project lat and lon into cartesian coordinates. From there, you can use poly2mask. The res...

2 months ago | 0

Answered
My code runs as a m file but not as an exe. What to do?
This answer explains it: How can I compile a pre-trained neural network into a standalone application using the MATLAB Compiler...

2 months ago | 0

Answered
Aerospace toolbox: “Unable to resolve the name” error
which -all Aero.FixedWing

2 months ago | 0

Answered
How to have multiple lines in a table variable name?
t = table(1,'VariableNames',"hello"+newline+"world") t(1, "hello"+newline+"world") Not sure why you'd want this though?

3 months ago | 0

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Published

Import Explorer to help you with importing table data
Jiro's Pick this week is Import Explorer for tables by Jan Studnicka.When importing data as a table, you can use...

3 months ago

Published

Industrial Machinery Anomaly Detection
Rachel is the product manager for predictive maintenance at MathWorks. Rachel's pick this week is Industrial...

4 months ago

Answered
Run reinforcement learning Agent on raspberry
You won't want to compile the MEX file to run on the Pi because it requires MATLAB. Instead generate code and recompile it for ...

4 months ago | 0

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Published

Widgets Toolbox – MATLAB App Building Components
Sean's pick this week is Widgets Toolbox by Robyn Jackey. Contents ...

4 months ago

Answered
Is there a MATLAB package manager?
Right now there is no package manager like the ones you listed in that everything in MATLAB is tied to the path. Using MATLAB A...

4 months ago | 0

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Answered
I need to run this python code in MATLAB. Can anyone guide me, please?
Why not use MATLAB's native MODBUS support? MODBUS Communication - MATLAB & Simulink (mathworks.com)

4 months ago | 0

Answered
ga optimization share variable between constraint and objective function to reduce computational time
All of your constraints are simple arithmetic. I think you could solve this much more quickly and effectively as a mixed intege...

5 months ago | 0