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Sean de Wolski


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MathWorks

5 676 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
replace function in tall array. This indicates an internal error. Please contact MathWorks Technical Support.
At the very least it's a doc bug because the doc says that tall arrays are fully supported for replace. It does appear to work ...

ungefär 3 timmar ago | 0

Answered
App Designer Main Window Behaviour
You should consider just using menus since that's what you're replicating with tabs. https://www.mathworks.com/help/matlab/ref/...

ungefär 11 timmar ago | 0

Answered
Export Table from Matlab Guide to Excel
This would be a lot easier in App Designer because the uitable data can just be a MATLAB table. I'd strongly encourage you to m...

4 dagar ago | 0

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Answered
Matlab app designer can't go further than the first dropdown value
if app.ConfigDropDown.Value == '1' elseif app.ConfigDropDown.Value == '2' elseif app.ConfigDropDown.Value == '3' en...

6 dagar ago | 1

Answered
Label connected components in binary image using non-standard pixel connectivity
Call imdilate with a custom structuring element of your size. This will then expand the regions so they overlap and bwlabel can...

7 dagar ago | 0

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Answered
Create a 32bit compatible standalone App with MATLAB R2019b
This is directly ony possible with R2015a or older, the last release to support 32 bit. You may consider using web apps which...

10 dagar ago | 0

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Answered
Resize Figure for Word report
You should really consider using the MATLAB Report Generator. You can simply add, a figure to a Word report (no COM API etc.). ...

12 dagar ago | 1

Answered
Error using Matlab Compiler
The symbolic math toolbox can't be compiled. You'll need to take the symbolic expression and convert it to a numerical one usin...

17 dagar ago | 0

Published


Draw a bubble bath
Jiro‘s Pick this week is bubblebath by Adam Danz.Adam is no stranger to File Exchange and File Exchange Pick of the...

ungefär en månad ago

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Spider Plot III – Custom Charts (Authoring)
Sean‘s pick this week is spider_plot by Moses. Last week, we looked at the custom chart I created.  This week, we’ll look at...

ungefär 2 månader ago

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Answered
2019b warnings popping up never had this before with 2019a
I've seen this warning in 19b too! Not sure if there is a change to the PNG library being used or if my image is corrupt/out of...

ungefär 2 månader ago | 0

Answered
checking dataType instead typecast at property or argument validation
There's no way to do this with validators in R2019b and the datatype coercion will always happen. You can use a set.property se...

ungefär 2 månader ago | 0

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Answered
Problem with accumarray/histcounts
This isn't the easiest to understand algorithm in the world but I think it does exactly what you want. n = size(C,1) ix = ceil...

ungefär 2 månader ago | 0

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Answered
what's a externally defined MCOS class ?
I'd contact tech support on that one.

ungefär 2 månader ago | 0

Published


Spider Plot II – Custom Charts (Intro)
Sean‘s pick this week is spider_plot by Moses. Contents Custom Charts Using the Custom Chart Comments Custom Charts My...

ungefär 2 månader ago

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How do I add multiple .PNG files to an existing PowerPoint (.pptx) file using a for loop?
I'd strongly encourage you to look at the MATLAB Report Generator for this which has the ability to easily add or replace conten...

ungefär 2 månader ago | 0

Answered
Integrating MATLAB Maps Broswer in my App Designer Project
Webmaps aren't supported in app designer. Look at using geoplot with the correct base map. Think this will get you what you wa...

ungefär 2 månader ago | 0

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Answered
Is there a way to get the top k values per row of a MATLAB array?
I'd probably do something like this: x = magic(4) k = 3 [~,idx] = maxk(x,k,2) for ii = 1:size(x,1) x(ii,~ismember(1:siz...

ungefär 2 månader ago | 0

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Answered
How to count the number of 1 between two 0 in a vector?
[regionprops(bwlabel([0 1 1 1 0 0 1 0 1 1 0 1]),'Area').Area]

ungefär 2 månader ago | 0

Answered
In programmatic report generation how can I display numbers in engineering format inside a table?
Look at the NumericFormat property of the MATLABVariable class https://www.mathworks.com/help/rptgen/ug/mlreportgen.report.matl...

ungefär 2 månader ago | 0

Published


Racing bar charts
Jiro‘s Pick this week is barChartRace by Eiji Konaka.This an example of a nice outcome that spawned from a community...

ungefär 2 månader ago

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Answered
How to combine all CT files to make a single array/matrix?
Look at dicomreadVolume! https://www.mathworks.com/help/images/ref/dicomreadvolume.html

ungefär 2 månader ago | 0

Answered
Retrain model, Classification Learner
When you export the model, there's an option to generate a function. This function can be used to retrain the model on new data...

2 månader ago | 1

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Answered
drawellipse not working, can't reproduce example
which -all drawellipse Looks like you're shadowing this.

2 månader ago | 0

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Published


digCircs
Sean‘s pick this week is digcircs by Graham W Griffiths.   My pick this week is a really cool visualization of the numbers...

2 månader ago

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Answered
How to share and update property value across different objects.
Put a breakpoint on this line: cgmObj.set_interstitial_BG(val); And see what cgmObj is and if it has a set_interstitial_BG(val...

3 månader ago | 0

Published


Determining next available file name
Jiro‘s Pick this week is nextname by Stephen Cobeldick.Stephen is no stranger in the MATLAB user community arena. As of...

3 månader ago

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Answered
Convert .rpt to .m file?
You can use the rpt file with the new APIs https://www.mathworks.com/help/releases/R2019b/rptgen/ug/mlreportgen.report.rptfile-c...

3 månader ago | 0

Answered
Plotting the density of latitude and longitude points as a heat map on geographic data
Look at geodensityplot https://www.mathworks.com/help/releases/R2019b/matlab/ref/geodensityplot.html

3 månader ago | 0

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