Sean de Wolski

Last seen: Today

MathWorks

5,727 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
Histogram with log Bin width
x = rand(1,10000)*100000; bins = 10.^(0:5); histogram(x, bins); set(gca, "XScale", "log")

1 day ago | 0

Answered
GlobalSearch inside parfor loop
Take everything inside the parfor loop and refactor it to a local or separate file function. Parfor loops should be as simple a...

28 days ago | 0

| accepted

Answered
Porting code to c++
Could you use the Compiler SDK to build a C++ library directly? This would reuse your exact implementation with patternsearch a...

1 month ago | 1

Answered
Accessing variables on onCleanUp function
function foo() %instruments declaration intrument1 = visa(...) instrumentcloser = onCleanup(@()fclose(instrument1)); %folder...

1 month ago | 0

| accepted

Answered
How to check if multiple objects are linked in a continuous way?
I don't completely understand what you mean by linking but it sounds like you want some of the capabilities afforded by digraph....

1 month ago | 0

Answered
Smoothing Spline C/C++ Code Generation Support
Hi Sravan, The curve fitting toolbox does not support code generation. However, the interpolation capabilities in core MATLAB d...

2 months ago | 1

| accepted

Answered
How to fix property validation and its implicit default values?
In >=19b this can be elegantly managed with arguments in the constructor (or with inputParser in older releases). classdef My...

2 months ago | 0

Answered
HTML file scraping for Fields in a Table
Start playing with htmlTree in the Text analytics toolbox. t = htmlTree(fileread('clientdata.txt')) t.findElement('TD').extr...

2 months ago | 0

Answered
reentering a parallel pool
Look at using a DataQueue to transmit intermediate data from one parfeval future that's running continuously. web(fullfile(docr...

2 months ago | 0

Answered
How to export a Classification Learner model into a Simulink block
I find it's easier to generate the code from the classification learner, copy out just the fit*() algorithm and retrain it to a ...

2 months ago | 1

Answered
use of retime with outlires
Use standardizeMissing() on the data set first with -999 as the indicator. Then you could either use fillmissing or rmmissing t...

2 months ago | 0

| accepted

Answered
App Designer Compatibility between 2020a and previous versions of Matlab
The app won't run in R2019b. You'll have to develop it on the earliest release that support is required for.

2 months ago | 0

| accepted

Answered
Mask Password with asterisk in edit field used in app designer
I would recommend using uihtml and the html password edit box. Attached is a functional example (can be better formatted and wh...

2 months ago | 3

Answered
How can the code tell if a single test is running instead of the whole test class?
Having the tests needing to know about how they are running is backwards. The tests should always do the same thing - test the ...

2 months ago | 0

Published

File Exchange Select – Inpaint_Nans, Gridfit, and fminsearchbnd/fminsearchcon
Sean's pick this week are the "File Exchange Select" files: inpaint_nans, fminsearchbnd-fminsearchcon, and...

2 months ago

Answered
How to create a 3D non convex surface (helical ribbon) with a set of points?
You could consider alphaShape. I'm not sure how it will handle the ribbon aspects though.

3 months ago | 0

Answered
How to keep the size and position of components created by MATLAB Appdesigner when I maximize the figure?
Use a uigridlayout

3 months ago | 0

Published

Changing figure settings
Jiro's Pick this week is SetFigPaper by jmrplens.Many of you may know export_fig by Yair (originally created by Oliver...

3 months ago

Answered
How to run google earth using MATLAB commands?
Do you want to open Google Earth or write files that can be consumed by it? Look at kmlwrite for writing files to be shown in i...

3 months ago | 0

Answered
Matlab can't be used for anything else while my code is running. How to fix?
For that application, use a timer.

3 months ago | 0

Answered
How can i take a property names in cell array of char vectors without using property function?
Why do you need to the property list in the C/C++ code? You could always just store it manually which would also let you contro...

3 months ago | 0

Answered
Add space and style to sliced table - MATLAB Report Generator
You're appending the same paragraph multiple times. It can only be appended once. Clone it first append(d,clone(p))

3 months ago | 0

Answered
Cumulative sum of last n entries of column vectors
Read saved table T = readtable('data.txt'); head(T) ans = C A CA _____ _ __ {'A'} 1 1...

3 months ago | 1

| accepted

Answered
Appdesigner apps won't run
Sounds like you may have corrupted: appdesigner.internal.service.AppManagementService. Probably worth contacting tech support. ...

3 months ago | 0

Answered
How to color/shade a sector of a polar plot with customized axis?
Use a polarhistogram and a polarplot (these are newer replacements for polar). This should give you the flexibility you want.

3 months ago | 0

| accepted

Published

MATLAB R2020a
Sean's pick this week is MATLAB R2020a by MathWorks' Development. Contents ...

3 months ago

Published

Ridgeline Visualization
Jiro's Pick this week is joyPlot by Santiago Benito.I must admit that I was simply drawn by the visualization, rather than...

3 months ago

Answered
Unit tests fail on "even" runs, but pass on "odd" runs (alternating pass/fail)
You should convert your code files and tests into a MATLAB Project which manages the path for you. Then as long as the project ...

3 months ago | 0

Answered
How to partition (discretize) the space around points using Voronoi Diagram?
Create a polyshape for each voronoi cell. Loop over cells and test isinterior for each, you can short circuit when you find a ...

3 months ago | 1

| accepted

Submitted

Figure Deployer
Deploy figures to images or byte streams.

3 months ago | 3 downloads |