Rik
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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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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...
13 días hace | 0
| aceptada
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...
20 días hace | 1
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...
21 días hace | 0
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...
alrededor de 1 mes hace | 0
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...
alrededor de 1 mes 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...
alrededor de 1 mes hace | 0
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...
alrededor de 2 meses hace | 0
| aceptada
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 ...
2 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:...
3 meses hace | 1
| aceptada
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...
3 meses hace | 1
| aceptada
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...
3 meses hace | 0
| aceptada
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...
3 meses hace | 0
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 ...
3 meses hace | 0
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Enviada
Wayback Machine API
This functions acts as an API for the Wayback Machine (web.archive.org).
3 meses hace | 1 descarga |
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 ...
3 meses hace | 0
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...
4 meses hace | 0
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 ...
4 meses hace | 0
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...
4 meses hace | 0
Enviada
ifversion
Determine if the current version satisfies a version restriction
4 meses hace | 2 descargas |
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';'...
4 meses hace | 0
| aceptada
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; ...
5 meses hace | 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...
5 meses hace | 0
Using string variable names for dot indexing
You're missing parentheses: varnames = {'rsrp_nr' 'sinr_nr'}; T=table(pi,2*pi,VariableName={'rsrp_nr' 'sinr_nr'}) T.(varnames...
5 meses hace | 1
define function in one line
I don't know if you want to avoid anonymous functions as well, but this should give you a finer plot: % p = sin(t) when t<0.6 ...
5 meses hace | 0
| aceptada
Clear distinction between positive and negative in colorbar
I would suggest using the top half of viridis and the bottom half of plasma (or the reverse). You can get both of them here. Th...
5 meses hace | 1
how can I extract values from a struct matrix that contains only one value to make single matrix from it?
Using numbered field names is a bad idea. It is almost as bad as using numbered variable names directly. The solution is to use...
6 meses hace | 0
What to do if my script gives error "The input was too complicated or too big for MATLAB to parse"?
I know I'm almost 7 years late to the party, but I just ran into this problem and was able to find a source and solution. For m...
6 meses hace | 1
I have a matrix problem to solve; A = (:,1) and B = (:,1) and C(:,1) matrixes. This I need in the tensor form like shown in the figure. How to calculate the determinant.
Use the zeros and size functions to generate the zeros row by row. Once you have the matrix you can use the det function to calc...
6 meses hace | 0