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Sean de Wolski


Last seen: Today

MathWorks

5,748 total contributions 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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Published


Simulink-to-Stateflow
Will's pick this week is Simulink-to-Stateflow by McSCert. Over the years, I've delivered dozens of talks on Stateflow, a...

22 days ago

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Does inpolygon work for latitudes and longitudes on the surface of the earth?
You need to project lat/lon into x/y using an appropriate projection for the region you're focused on. Then inpolygon (or polys...

25 days ago | 0

Published


R2020b: swarmchart
Jiro's Pick this week is swarmchart, a new visualization function in R2020b.Following Sean's post from last week, I'd like...

26 days ago

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R2020b
Sean's pick this week is MATLAB R2020b by MathWorks Development. Our fall 2020 release...

1 month ago

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How can I suppress the output of another function that is called from my function?
Easiest way would be to pass an optional flag into incsearch that specifies whether it should display or not. function xb = i...

1 month ago | 0

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MATLAB Profiler - Granularity of Information
This got better in R2020a with the new interface to the profiler.

2 months ago | 0

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Interactive apps for solid mechanics
Jiro's Pick this week is Apps For Solid Mechanics by Ephraim Bryski.My day job is supporting educators and researchers...

2 months ago

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Remove rows duplicates based on a condition
MWE- use the 'stable' flag to unique if you care about order: x = [172 2 1; 134 3 2; 172 4 0.4]; [uv,~,idx] = u...

2 months ago | 0

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Excercises for MATLAB programmimg
https://www.mathworks.com/matlabcentral/cody/?s_tid=gn_mlc_cody

2 months ago | 0

Answered
How can I run my functions from MATLAB in Python?
Try adding it to the MATLAB path from Python when you instantiate the engine (or navigate to the directory the file is in with e...

2 months ago | 0

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Answered
create a vector of 0 and 1s that takes 1 at a fixed interval
repmat([zeros(1,m), 1],1,5)

2 months ago | 0

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scroll programmatically within uitable
The scroll syntax in 20a only works in uifigures (the underlying figure used by app designer). Simply call it in a callback or ...

2 months ago | 0

Answered
Matlab requires restart before changes in Python code changes are applied
Try this clear classes m = py.importlib.import_module('yourlib'); py.importlib.reload(m);

3 months ago | 0

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Model-Based Autonomous Traffic Simulation
Today's post is by Kathi Kugler, who is part of MathWorks Academic Engineering Team. This week’s Pick is MOBATSim by...

3 months ago

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Histogram with log Bin width
x = rand(1,10000)*100000; bins = 10.^(0:5); histogram(x, bins); set(gca, "XScale", "log")

3 months ago | 0

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Published


Zoom Plot
Sean's pick this week is zoomPlot by Kelsey Bower. (No - it's not the matrix of faces that...

3 months ago

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Prettify MATLAB HTML
Jiro's Pick this week is Prettify MATLAB html by Harry Dymond.By now, many of you are probably aware of Live Scripts for...

3 months ago

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Deprecating support for edfread and edfreadUntilDone
It feels like forever ago (it was back in 2009) that I wrote and posted to the File Exchange the edfread function. At...

4 months ago

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GlobalSearch inside parfor loop
Take everything inside the parfor loop and refactor it to a local or separate file function. Parfor loops should be as simple a...

4 months ago | 0

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Face Mask Detection using Deep Learning
Jiro's Pick this week is COVID19 Face Mask Detection using Deep Learning by Wanbin Song.Face masks had always been quite...

4 months ago

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Convert TDMS
Sean's pick this week is ConvertTDMS by Brad Humphreys. I'm asked occasionally by LabVIEW...

4 months ago

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Porting code to c++
Could you use the Compiler SDK to build a C++ library directly? This would reuse your exact implementation with patternsearch a...

4 months ago | 1

Answered
Accessing variables on onCleanUp function
function foo() %instruments declaration intrument1 = visa(...) instrumentcloser = onCleanup(@()fclose(instrument1)); %folder...

4 months ago | 0

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How to check if multiple objects are linked in a continuous way?
I don't completely understand what you mean by linking but it sounds like you want some of the capabilities afforded by digraph....

4 months ago | 0

Answered
Smoothing Spline C/C++ Code Generation Support
Hi Sravan, The curve fitting toolbox does not support code generation. However, the interpolation capabilities in core MATLAB d...

4 months ago | 1

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Published


SIR Math Model of Virus Spread (Coronavirus or other)
Will's pick this week is SIR Math Model of Virus Spread (Coronavirus or other) by Tom Beekhuysen. One of the most popular...

4 months ago

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How to fix property validation and its implicit default values?
In >=19b this can be elegantly managed with arguments in the constructor (or with inputParser in older releases). classdef My...

4 months ago | 0

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HTML file scraping for Fields in a Table
Start playing with htmlTree in the Text analytics toolbox. t = htmlTree(fileread('clientdata.txt')) t.findElement('TD').extr...

4 months ago | 0

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reentering a parallel pool
Look at using a DataQueue to transmit intermediate data from one parfeval future that's running continuously. web(fullfile(docr...

5 months ago | 0

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Copying uiaxes graphics
Jiro's Pick this week is copyUIAxes by Adam Danz.Many of you may know Adam from both File Exchange and MATLAB Answers. On...

5 months ago

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