Sean de Wolski

Bouncing Bumbles LLC

2011 年からアクティブ

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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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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年弱前 | 3

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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年弱前 | 0

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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年以上前 | 1

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

2年以上前 | 0

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

2年以上前 | 0

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

2年以上前 | 0

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

2年以上前 | 0

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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年以上前 | 1

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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

2年以上前 | 0

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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年以上前 | 0

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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年以上前 | 0

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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年以上前 | 1

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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年以上前 | 1

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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年以上前 | 0

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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年以上前 | 1

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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...

3年弱前 | 1

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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...

3年弱前 | 0

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

3年弱前 | 0

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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年弱前 | 1

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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年弱前 | 0

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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年弱前 | 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年弱前 | 0

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

3年弱前 | 1

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

約3年前 | 2

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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'...

約3年前 | 0

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

約3年前 | 0

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Sean de Wolski

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