Sean de Wolski

MathWorks

5.602 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.

Sean de Wolski's Badges

Answered
How to Compile an Application with the "pspectrum" function?
The signalAnalyzer app is not compilable. You shouldn't have to do anything to compile pspectrum, it should just work. Do you ...

etwa 12 Stunden ago | 0

Answered
Findpeaks - excluding peaks within certain x axis values
findpeaks(y(x>10)) ?

etwa 16 Stunden ago | 1

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Answered
SimEvent entity life time for total cycletime calculation
Pull in the Simulink Sources / Clock Block as an input to stamp an entity with the clock time at initialization and termination....

7 Tage ago | 0

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Reducing jagged appearance of head CT mesh
Look at using smooth3 on the volume first before calling isosurface().

7 Tage ago | 0

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Answered
Add Customized Elements in Component Library in Matlab App Designer
You should strongly consider using SimEvents for this.

12 Tage ago | 1

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drawfreehand in App Designer ?
It's kind of silently supported but you can programmatically (>=R2018b) add an axes to a uifigure and then draw* will work. ax ...

12 Tage ago | 2

Answered
Find non unique string in a table
n = groupcounts(T.Alpha) [~, last] = unique(T.Alpha, 'last') T.Ticket(last(n>1)) Using the "new and shiny" groupcounts.

12 Tage ago | 1

Published

When was the function introduced?
Jiro‘s Pick this week is when by Reza Ahmadzadeh.Working at MathWorks, I have become spoiled and have become used to...

22 Tage ago

Answered
Get a property from a class
You can set the SetAccess attribute of the properties block including it to make it read-only. No reason to deal with get(), ac...

29 Tage ago | 0

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Generate Code for All the Things?
Greg’s pick this week is A short introduction on using model based design approach in Embedded System by TAB. Imagine a...

etwa ein Monat ago

Published

Struct2Vars
Sean‘s pick this week is struct2vars by Matthew Eicholtz. I was recently asked by a colleague: “How do I get all of the...

etwa ein Monat ago

Answered
How can I define a homogeneous cell array with elements of a fixed size?
Why bother using a cell array v. a 3d array of size [dims1 dims2 N]?

etwa ein Monat ago | 0

Published

Changing font size of built-in dialog boxes
Jiro‘s Pick this week is msgboxFontSize by Adam Danz.This utility reminded me of a very recent project, which would have...

etwa ein Monat ago

Published

Beer Me!
Sean‘s pick this week is beerme by bheinle7. Have you ever looked at your MATLAB Apps tab and been sad? Even though the...

etwa 2 Monate ago

Published

Alluvial flow diagram
Jiro‘s Pick this week is Alluvial flow diagram by Alexander Carmeli.I give credit to Yair for bringing this entry to my...

2 Monate ago

Published

AIS Decoder
Idin‘s pick this week is AIS Decoder by our former colleague Mike Donovan. This example shows how to decode automatic...

2 Monate ago

Answered
Error using dlmread- mismatch between file and format character vector (reading a ply file)
Why not just use pcread?

3 Monate ago | 0

Answered
How to call external C++ function from Matlab
Starting in 19a, you can call C++ libraries directly in MATLAB: https://www.mathworks.com/help/releases/R2019a/matlab/call-cpp-l...

3 Monate ago | 1

Answered
How to convert cell array of characters to a datetime array without looping through each cell individually?
Converting the cellstr to a string makes this much easier: cellDates = {' " 8 / 2 4 / 2 0 1 8 8 : 5 9 : 1 8 A M " ';... ...

3 Monate ago | 1

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Answered
How can I upload files to the App Designer? Can files be uploaded in a web application?
Support for uigetfile() to upload local files to a web app was added in R2018b.

3 Monate ago | 1

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Published

Memory Info
Sean‘s pick this week is Memory Info by Sviatoslav Danylenko. Have you ever wanted to get the current memory used by MATLAB?...

3 Monate ago

Answered
Sending SIMULINK cache files to another folder
In the Simulink Preferences (from home tab>preferences)

3 Monate ago | 0

Answered
Unhide code in Live Script
Install Update 2 (should appear in upper right hand corner of desktop if online), it fixes this bug.

3 Monate ago | 0

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Published

ThingSpeak functionality ships with R2019a
Jiro‘s Pick this week is ThingSpeak Support Toolbox by MathWorks Internet of Things Team.ThingSpeak is MathWorks’ IoT...

3 Monate ago

Answered
Generate searchable documentation for MATLAB Packages(Namespaces) and Classes
I've always exported the html from the autogenerated doc page: doc mypack.myclass Or written a Live Script that documents the ...

3 Monate ago | 0

Published

What’s Your Color Scheme?
Brett‘s Pick this week is MATLAB Schemer, by Scott Lowe. Contents Easy manipulation of your MATLAB color scheme! MATLAB is...

3 Monate ago

Answered
How to replace arbitrary groups of matrix entries in a vectorized way?
<edited> A simple for-loop will likely be the fastest and most comprehensible way to do this. For-loops are plenty fast in MAT...

3 Monate ago | 0

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Answered
MATLAB start up option -batch no recognized
The -batch option was added in R2019a.

3 Monate ago | 1

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Answered
Error using Classificationlearner model in Simulink
Unfortunately this workflow is more painful than it should be. I've found the best set of steps is to: Generate the code for t...

3 Monate ago | 0

| accepted

Answered
timetables stored within a 1x1 cell array within a .mat file
No. Timetable shipped in R2016b; you'll need to upgrade.

3 Monate ago | 0

| accepted

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