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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.

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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 ...

6 giorni ago | 0

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

6 giorni ago | 1

| accepted

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....

12 giorni ago | 0

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

12 giorni ago | 0

| accepted

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

17 giorni ago | 1

Answered
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 ...

17 giorni 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.

17 giorni 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...

27 giorni ago

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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...

circa un mese ago | 0

| accepted

Published


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...

circa un mese ago

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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...

circa un mese ago

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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]?

circa 2 mesi 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...

circa 2 mesi ago

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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...

2 mesi ago

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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 mesi ago

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

3 mesi ago

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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 mesi 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 mesi ago | 1

| accepted

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 mesi ago | 1

| accepted

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 mesi ago

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

3 mesi 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 mesi ago | 0

| accepted

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 mesi ago

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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 mesi 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 mesi ago

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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 mesi ago | 0

| accepted

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

3 mesi ago | 1

| accepted

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...

4 mesi 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.

4 mesi ago | 0

| accepted

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