Sean de Wolski

Last seen: Today

MathWorks

5,744 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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Answered
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...

7 days ago | 0

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

21 days ago | 0

Published

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...

25 days ago

Answered
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...

28 days ago | 0

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

1 month 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...

1 month 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)

1 month ago | 0

Answered
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);

2 months ago | 0

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Published

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...

2 months ago

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

2 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...

2 months ago

Published

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...

2 months ago

Published

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...

3 months ago

Answered
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...

3 months ago | 0

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Published

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...

3 months ago

Published

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

3 months ago

Answered
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...

3 months ago | 1

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

3 months ago | 0

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Answered
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....

3 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...

3 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...

3 months ago

Answered
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...

3 months ago | 0

Answered
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...

3 months ago | 0

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

4 months ago | 0

Published

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...

4 months ago

Answered
How to export a Classification Learner model into a Simulink block
I find it's easier to generate the code from the classification learner, copy out just the fit*() algorithm and retrain it to a ...

4 months ago | 1

Answered
use of retime with outlires
Use standardizeMissing() on the data set first with -999 as the indicator. Then you could either use fillmissing or rmmissing t...

4 months ago | 0

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Answered
App Designer Compatibility between 2020a and previous versions of Matlab
The app won't run in R2019b. You'll have to develop it on the earliest release that support is required for.

4 months ago | 0

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Answered
Mask Password with asterisk in edit field used in app designer
I would recommend using uihtml and the html password edit box. Attached is a functional example (can be better formatted and wh...

4 months ago | 3

Sean de Wolski

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