Sean de Wolski
MathWorks
5,516 total contributions since 2004I 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.
Sean de Wolski's Badges
Obtain 50 solvers for a problem you have created
Awarded to Sean de Wolski on 30 Jul 2018
Contribute at least one answer each month for 36 consecutive months
Awarded to Sean de Wolski on 20 Jul 2017
Accept 5 answers given by other contributors
Awarded to Sean de Wolski on 20 Jul 2017
Answer 10 questions that were unanswered for more than 30 days
Awarded to Sean de Wolski on 20 Jul 2017
100 of your answers have been accepted
Awarded to Sean de Wolski on 20 Jul 2017
Provide your first answer ever to someone else's question
Awarded to Sean de Wolski on 20 Jul 2017
15-year anniversary Scavenger Hunt finisher badge
Awarded to Sean de Wolski on 09 Nov 2016
Create a problem
Awarded to Sean de Wolski on 06 Jun 2012
Be the first to solve a problem
Awarded to Sean de Wolski on 06 Jun 2012
Like a problem or solution
Awarded to Sean de Wolski on 09 May 2012
Comment on a problem or solution
Awarded to Sean de Wolski on 23 Feb 2012
Solve a problem for the first time
Awarded to Sean de Wolski on 26 Jan 2012
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...
10 hours ago | 0
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 day ago | 0
findpeaks alternative - help fixing code
How about: islocalmin and islocalmax?
1 day ago | 0
Analyze75Read and Readanalyze Difference
which -all readanalyze 'readanalyze' not found. I'm guessing this is a 3rd party function. I'd recommend using analyze75rea...
2 days ago | 0
How to find table column number by column name?
tidx = find(string(T.Properties.VariableNames) == "Temperature")
3 days ago | 1
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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; ...
4 days ago | 0
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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...
4 days ago | 1
Can someone give an example of a for loop for this problem?: Find the sum of 30 numbers that increments by 3. The starting number is 4. Thanks!
x = sum(4:3:(4+3*(30-1)))
7 days ago | 1
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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...
7 days ago
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.
11 days ago | 0
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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...
17 days ago | 4
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Remove the slprj folder programmatically
What about with the 's' option rmdir('slprj', 's')
23 days ago | 0
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('...
24 days 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...
24 days ago
How to Retrieve Files from Lost/Stolen Computer
<https://www.mathworks.com/products/matlab-drive.html>
1 month 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...
1 month ago
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...
1 month ago | 0
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 ...
1 month ago | 0
How to unit test with verifyError?
verifyError(testCase, @()add5('c'), 'add5:InputMustBeNumeric') Pass the function handle into verifyError rather than a res...
1 month ago | 1
| accepted
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....
1 month ago
Published
Dynamics of Rigid Bodies – Live Editor Challenge Winner (Faculty Category)
Jiro‘s pick this week is The dynamics of rigid bodies system by Anna Sibilska-Mroziewicz.Continuing from my last Pick,...
2 months ago
Published
‘Custom Syntax for Formatted Strings with %s’\{SPRINTF}
Greg’s pick this week is Nice sprintf syntax using \ (left divide) by Will Fox. A simple entry that exemplifies the...
2 months ago
I'm trying to subtract the day from the datetime
dateshift(dt, 'start', 'month') There will still be a day associated with it but it would be standardized on first day of m...
2 months ago | 0
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Published
EDF Read
Sean‘s pick this week is edfRead by Brett Shoelson. EDF Read A MATLAB user asked me yesterday if we have support for the...
2 months ago
How get row index of first and last appearance each unique cell element
Unique is your friend: x = ["MUY09KT00" "TW00.00" "MUY09KT00" "TW00.00" "MUY09KT00" "TW00.00" "MHJ09KT00" "P...
2 months ago | 0
S Function Builder - To implement existing C code
If you're using 18b, consider using the C Caller block: <https://www.mathworks.com/help/releases/R2018b/simulink/ug/integrate...
2 months ago | 1
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Parsing varargin for a function called with values only instead of name-value pairs
I like name-value pairs because it makes it easier to extend in the future if you need a new option. With the ability to have a...
2 months ago | 0
| accepted