Rik

Last seen: Today | Con actividad desde 2017

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E-mails with feedback/questions about FEX submissions are welcomed. In general I will post e-mails about Answers on the related page, unless there is good cause not to do so.

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Respondida
I need help for drawing a constraint in Matlab in 2D
I have no clue what you mean mathematically with what you wrote, but if you want to plot a vertical line, you can use xline(): ...

8 días hace | 0

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.mltbx installer that works on multiple operating systems
Can't you simply include all 3 files? Matlab will select the correct one automatically. As to your point about deciding in co...

alrededor de 1 mes hace | 0

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Issue loading mat file in different MATLAB versions
Without the mat file, it is impossible to tell what type of object gets loaded in R2023b. It looks as if it gets loaded as an em...

alrededor de 2 meses hace | 0

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Indexing in nonsequential order
Your code is so confusing that I don't know what edit to suggest, but I expect you need to use the exist function to check wheth...

alrededor de 2 meses hace | 0

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Update multiple objects Position(2) at once
A loop is actually the best way. Using arrayfun will only disguise the loop and cost you performance. Interestingly, cellfun wit...

alrededor de 2 meses hace | 0

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Regarding continuity after deactivation of institute email ID linked to MATLAB account.
Just to post a general answer: You can request the login email address of your account to be changed. Your account is not str...

2 meses hace | 1

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Respondida
How to get correct pixel size in 2D after cut 3D voxel using obliqueslice
If you use the second output format: [B,x,y,z] = obliqueslice(___) this function already returns the coordinates for each pixe...

3 meses hace | 0

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Bar plot doesn't accept width of 1.0
As you can see, this behavior is caused by the x-values being dates. I suspect the underlying reason is that your data is not eq...

3 meses hace | 0

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compiler.runtime.customInstaller fails to reduce mcr installer size
I don't know why the size doesn't decrease when using the new function. Do you only have these toolboxes installed? If so 'requi...

5 meses hace | 0

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make the execution faster
There isn't something specific I notice in your loop code (other than your abundance of colon-indexing). So let's take a look a...

5 meses hace | 0

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Put variable names into a cell array or string array
Adding to the comments: you are putting data (a description and therefore a property) in the variable name. That is where your d...

5 meses hace | 1

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Everytime I run code the color of lines on my graph changes
That makes sense, since you don't actually set the LineColor property when calling plot (instead you just have a variable with t...

5 meses hace | 0

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App Designer has error in generated code
In this case the syntax error is because the anonymous function is incorrect: app.RawdataPlotterAppUIFigure.CloseRequestFcn = c...

6 meses hace | 0

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Undefined function 'hamming' for input arguments of type double
Short answer: The hamming function is part of a toolbox you apparently didn't install. In this case the signal processing toolb...

7 meses hace | 0

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Error in gui_mainfcn
Why did you post this wall of unformated code? Do you expect anyone to actually read it? Lucky for you the error message tells ...

7 meses hace | 0

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Error using montage function
If you check the documentation, which of the syntaxes are you actually using? It looks to me like montage(I,map), while you pro...

7 meses hace | 1

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Save numbers after text pattern in a vector
Having a typo in your needlessly complicated regex doesn't help: meta_file_read=["#--------------------------------------------...

7 meses hace | 0

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Global struct or separate globals for callback optimization?
You should only be using global variables when you have no other option, and you almost always have. In the context of a GUI, y...

8 meses hace | 0

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How do I preallocate memory
A third way to do it: loop backwards. for ii = numel(hucPoly):-1:1 This also replaces the call to the length function. I...

9 meses hace | 1

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Big CSV file read in matlab
You can use fgetl to read a single line. Do that in a loop to retrieve 5000 lines (or something like that). Then you do whatever...

9 meses hace | 0

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save tic toc in duration style
The code below removes the cargo cult programming, removes the sprintf where you aren't actually using it to format a string, an...

9 meses hace | 0

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How to keep the original layout in the full screen or when maximizing the GUI of a MATLAB App ?
You should set the units to Normalized. That will scale the sizes of the buttons as you expect. There is an art to this, sinc...

9 meses hace | 0

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looping thru multiple line data in UIAxes plot and writing all X,Y data to an array
I would suggest a struct array. That way you can store all relevant properties and you can fairly easy recreate the line objects...

9 meses hace | 0

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Reading in .txt File
Your file is not a table, but is more like a struct. Usually such a file would use a JSON format, but you are not in luck. Wh...

10 meses hace | 0

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How do I close an open instrument handle following an error?
You may be interested in oncleanup. When a variable goes out of scope, that function can run code. Alternatively you can put ...

10 meses hace | 0

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Please help me make my code more efficient
I don't see any way to fundamentally change how your code works to speed it up, other than performing the row swaps in one call:...

10 meses hace | 1

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How to save matrix as a "pretty print" image?
Depending on your definition of pretty, you can use my text2im function. If you use sprintf, don't forget to transpose the array...

10 meses hace | 1

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How do I get the x and y values of the zoomed in portion of a linear plot from matlab figure?
You can use the XLim and YLim properties to find out the exact x and y ranges. Then you can use logical indexing to select the p...

11 meses hace | 0

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cannot find downloaded files!
These download+install programs tend to download file in two locations: your downloads folder and your temp folder. I don't know...

11 meses hace | 0

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Concatenating a cell array
The assignment tells you to use a for loop. So even if it can be solved without one, let's do it. But before we can do that, we ...

11 meses hace | 0

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