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Sean de Wolski


MathWorks

5,523 total contributions since 2004

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

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

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Answered
Flipping specific segment of string rather than the whole string
str=join(reverse(split("One two buckle my shoe")))

6 hours ago | 0

Answered
Finding the spectrums of three segments of a signal without using the 'fiindpeaks' function?
doc pwelch doc islocalmax doc islocalmin

6 days ago | 0

Published


GPS Visibility Predictor
Will‘s pick this week is GPS Visibility Predictor by Eric Ogier. The first demo I built upon joining MathWorks was a...

6 days ago

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Published


Download Lots of Files
Greg’s pick this week is Matlab Data Download by Marcus Vollmer. Perform a search of a website based on file extensions,...

13 days ago

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Answered
XML: Count how many <Tags>
Something along these lines: xml = xmlread(xmlfile); Xtag = xml.getElementsByTagName('X'); Xtag.getLength

14 days ago | 1

| accepted

Answered
Regular expression. Are nesting of group operators supported?
The Note below "Named Token Operator" indicates that the outermost will be captured, hence ABC and one token. Note If an exp...

1 month ago | 1

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Published


Let’s draw Spider-Man!
Jiro‘s pick this week is Let’s draw Spider-Man! by Ikumi Takemura.Recently, in the last couple of years, we have been...

1 month ago

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Answered
How to save alphashape image as STL or CAD?
Get the alphaTriangulation from the alphaShape and then call stlwrite (new in 18b) A = alphaShape(rand(10,2)) [T, P] = alphaT...

1 month ago | 0

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Answered
How do I solve this error: Error using matlab.io.datastore.ImageDatastore/readimage (line 32)?
It looks like the datastore (probably imdsTest) only sees 8 images so you can't read the 10th or 15th one.

1 month ago | 0

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Answered
findpeaks alternative - help fixing code
How about: islocalmin and islocalmax?

1 month ago | 0

Answered
Rename a bunch of time files
Look at dir() and movefile()

1 month ago | 1

Answered
Analyze75Read and Readanalyze Difference
which -all readanalyze 'readanalyze' not found. I'm guessing this is a 3rd party function. I'd recommend using analyze75rea...

1 month ago | 0

Answered
How to find table column number by column name?
tidx = find(string(T.Properties.VariableNames) == "Temperature")

1 month ago | 1

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Answered
what's the special symbol in a string
erase(tmp, newline)

1 month ago | 0

Answered
How can I remove double quotes from a string?
Use readtable.

1 month ago | 0

Answered
How to insert a n x m matrix or table, into an existing table?
Sounds like data should be a cell array to which you insert 10x5 matrices. replace: data = cell(4,1); And T.data{i} = data; ...

1 month ago | 0

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Answered
Issue with Simulink Model Simulation inside Parfor ?
Have you looked at parsim? It's the new an improved means for simulating in parallel and takes care of the file management that...

1 month ago | 1

Published


Yankee Swap
Sean‘s pick this week is Yankee Swap by Heather Gorr. As the end of the year approaches, many of you will likely be...

1 month ago

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Answered
Modifying inceptionv3 (pre-trained deep learning network)
You can import the layers from the base workspace of MATLAB into the Deep Network Designer and modify it there.

2 months ago | 0

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Answered
How to get 'type' of a variable in matlab?
To get the data type, or class, of a variable, use the “class” function. x = 100; class(x) To determine if a variable has a s...

2 months ago | 4

| accepted

Answered
Remove the slprj folder programmatically
What about with the 's' option rmdir('slprj', 's')

2 months ago | 0

Answered
How to import multiple .csv files to MATLAB?
Something along the lines of the following. You can control what you read in by setting datastore properties. ds = datastore('...

2 months ago | 0

Published


Drawing Shear Force, Bending Moment Diagram
Jiro‘s pick this week is Shear Force Bending Moment by Lateef Adewale Kareem.As an ex-mechanical engineer, I remember my...

2 months ago

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Answered
How to Retrieve Files from Lost/Stolen Computer
<https://www.mathworks.com/products/matlab-drive.html>

2 months ago | 0

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Published


WINNER and WINNER II
Idin‘s pick this week is Winner II Channel Model for Communications Toolbox by MathWorks Communications System Toolbox...

2 months ago

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Answered
any workaround for deploying applications allowing users to define custom functions?
If they want it to be customizable, then they need a MATLAB license and you can just give them the source code for the app so ad...

2 months ago | 0

Answered
neural network hyperparameter tuning
This is nowhere near as easy as it should be. The shallow neural net infrastructure is old and uses row-major variables. This ...

2 months ago | 0

Answered
How to unit test with verifyError?
verifyError(testCase, @()add5('c'), 'add5:InputMustBeNumeric') Pass the function handle into verifyError rather than a res...

2 months ago | 1

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Published


Zombie Outbreak
Sean‘s pick this week is Mathematical modelling of an outbreak of zombie infection by E. Cheynet. In honor of Halloween, E....

3 months ago

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