Sean de Wolski

Bouncing Bumbles LLC

Active since 2011

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I worked at MathWorks during: >>timerange(datetime(2011,11,28),datetime(2023,3,3),'closed') Now I race sled dogs and offer consulting services around MATLAB for software and application development.

Programming Languages:
Python, MATLAB, HTML, Visual Basic
Spoken Languages:
English

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Answered
currentProject() function in Parallel Computing Toolbox
You can open the project on all workers before the loop with parfevalOnAll. gcp rf = currentProject().RootFolder parfevalOnAl...

2 years ago | 3

| accepted

Answered
Why will categorical not convert this cell string?
The left-hand side was a cell. So it successfully converted the right-hand side to categorical but then could not stick the cat...

2 years ago | 0

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Answered
Smart indent new bheaviour (removing whitespaces) is messing with Git
This isn't a direct answer to your question but a couple ideas: 1) In my opinion, the new behavior is smarter. There shouldn't...

2 years ago | 1

Answered
Can Matlab append figures to an existing PDF file?
In newer releases you can do this with exportgraphics. See the section on appending.

2 years ago | 0

Answered
Creating Geometry for PDE model
What about the doc example isn't sufficient for you? It literally creates a rectangle. geometryFromEdges

2 years ago | 0

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Answered
Capitalize 1st word of an character array
s = "99this" firstletter = letterBoundary("start")+lettersPattern(1) replace(s, firstletter, upper(extract(s, firstletter)))

2 years ago | 0

Answered
Can you rotate a shape based on quiver direction?
Look at hgtransform

2 years ago | 0

Answered
Find and Replace (MATLAB)
strip(extractAfter('Adak Island, AK',",")) And see the other fun methods of string to figure out how to manipulate the part you...

2 years ago | 1

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Answered
Is there a built-in function to validate a class property that should be a cell array?
I think you'll have to write your own. Must be underlying type is for distributed, gpuArrays and others that masquerade as the ...

2 years ago | 0

Answered
How to vectorize the following operations?
This ought to do it for you in one shot. pagemtimes d = 4; n = 5; A = rand(d,d,n); x = rand(d,n); y = rand(d,n); % for-...

2 years ago | 0

Answered
How can I avoid errors related to a datatip when deleting a figure?
Not sure why you're parenting to [], that doesn't make sense. Just delete the figure with your MWE works fine. (Still probably...

2 years ago | 0

Answered
Create tables based on partial match in variable names in other table
Convert your cellstrs to strings string(t.Properties.VariableNames) Then you can use any of the easy string matching functions...

2 years ago | 0

Answered
Help with code, writematrix not working. Please help fix
which -all writematrix which -all mpower

2 years ago | 0

Answered
How do I pass by reference, a structure to a function (an .m file) in an argument list?
Author a simple handle class that has the structure as a property classdef referenceStruct < handle properties S s...

2 years ago | 0

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Answered
How do I pass an object into a timer callback function?
Pass cam in with an anonymous function when you create the timer cam = camera t = timer(TimerFcn=@(~,~)checkFinished(cam)) ...

2 years ago | 0

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Answered
Show viscircles results in App Designer
Specify the app UIAxes as the first input a = uiaxes; % replace with you app.UIAxes imshow('coins.png',Parent=a) [centers,rad...

2 years ago | 1

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Answered
Extracting xyzpoints from Point Cloud
The location is the xyz points and it's 2d, not 3d like how you're indexing it. points3d = ptCloud.Location.'; Would give you...

2 years ago | 1

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Answered
Creating tables on MS Word
This is exactly what the MATLAB Report Generator does really well. Look at the sections on tables and images, here: https://ww...

2 years ago | 0

Answered
How to publish as pdf from command tab
Open the function and go to the publish tab in the toolstrip. From there, click the dropdown under the publish icon for settings...

2 years ago | 1

Answered
Is it a good idea to overload subsref to mimic MATLAB's griddedInterpolant behavior?
Personally, i.e. not speaking for my corporate overlords, I don't like this design pattern. I prefer a well-named "evaluate" me...

2 years ago | 1

Answered
How to fix auto-reflow issues?
In 21b you can remove autoreflow from the Canvas Tab>Convert. They named the feature to remove it after me because I was in the...

2 years ago | 0

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Answered
Why Matlab does not see Python?
Looks like you have 32-bit python. You need 64-bit Python.

2 years ago | 0

Answered
Convert python numpy 2D array to matlab 2D array
What is the underlying python class of your ndarray? It doesn't seem to be recognized by double. Here, I create it with int8 a...

3 years ago | 1

Answered
Using function of newer MATLAB version in older version
Sounds like you might be looking for wrapTo360 et al. in Mapping Toolbox: https://www.mathworks.com/help/releases/R2021b/map/re...

3 years ago | 0

Answered
Create Text Box in PowerPoint file
All you have to do is set X/Y/Width/Height properties of the TextBox presentation element. See this example that does exactly w...

3 years ago | 0

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Call a MATLAB function from .NET program
https://www.mathworks.com/help/releases/R2021b/matlab/matlab_external/call-matlab-function-from-c-client.html

3 years ago | 0

Answered
Generating an STL of a paraboloid surface made out of hexagons
1) yes 2) Look at stlwrite and triangulation.

3 years ago | 1

Answered
surf indices reversed?
I think you're seeing the difference between meshgrid and ndgrid. Meshgrid is used for plotting, ndgrid for matrix/tensor work ...

3 years ago | 2

Answered
Sending input() from Python API
This works if you start the MATLAB engine with the desktop: import matlab.engine eng = matlab.engine.start_matlab('-desktop'...

3 years ago | 0

Answered
How can I iterate across the opposite diagonal?
full(flip(gallery('tridiag', 8, 4, 6, 4), 2))

3 years ago | 0

Sean de Wolski

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