Rik

Last seen: 2 giorni fa | Attivo dal 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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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...

4 giorni fa | 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...

28 giorni fa | 0

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readdicomfolder
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circa un mese fa | 1 download |

Risposto
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...

circa un mese fa | 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 ...

circa 2 mesi fa | 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...

circa 2 mesi fa | 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=["#--------------------------------------------...

2 mesi fa | 0

Inviato

ComputeNonCryptHash
Compute a non-cryptographic hash

3 mesi fa | 1 download |

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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...

3 mesi fa | 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...

3 mesi fa | 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...

3 mesi fa | 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...

4 mesi fa | 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...

4 mesi fa | 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...

4 mesi fa | 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...

4 mesi fa | 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 ...

5 mesi fa | 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:...

5 mesi fa | 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...

5 mesi fa | 1

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Risposto
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...

5 mesi fa | 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...

6 mesi fa | 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 ...

6 mesi fa | 0

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Inviato

Wayback Machine API
This functions acts as an API for the Wayback Machine (web.archive.org).

6 mesi fa | 1 download |

Risposto
Evaluating function handles without writting inputs
The only way I can think of would be by wrapping the anonymous functions. x=5;y=10; f=@(x,y) x.^2+y.^2; f=@() f(x,y); phi ...

6 mesi fa | 0

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Fastest way of opening a text file and converting it to a matrix?
doc fscanf If you know the format, using that knowledge always improves speed, since the more complicated tools don't need t...

6 mesi fa | 0

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Delete part of a 4D array
Let's try something: try data=rand(4,3,5,6); data(1:2,3,:,:)=[]; catch ME warning('error: %s',ME.message) end ...

6 mesi fa | 0

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use struct in loop for
I fully agree with Dyuman and Stephen. As to the source of the error in this code: the error message is giving you a hint. So...

6 mesi fa | 0

Inviato

ifversion
Determine if the current version satisfies a version restriction

7 mesi fa | 1 download |

Risposto
how to do for loop 2nd level?
Your code can be optimized, but here are the minimal changes. beam = {'A';'B';'C';'D';'E';'F';'G';'H';'I';'J';'K';'L';'M';'N';'...

7 mesi fa | 0

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Store values from loop
If you want to store results from all iterations, you need to store them and not overwrite them: res1 = cell(1,100);index = 0; ...

7 mesi fa | 0

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M-scripting tutorial
If you want to learn the Matlab basics you may consider doing the Onramp tutorial (which is provided for free by Mathworks). If...

7 mesi fa | 0

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