photo

Rik


Last seen: Today Active since 2017

Followers: 0   Following: 0

Message

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.

Statistics

All
  • Treasure Hunt Participant
  • MATLAB Central Treasure Hunt Finisher
  • Thankful Level 4
  • 36 Month Streak
  • Cody 10th Anniversary 10-Day Streak
  • Promoter
  • 5-Star Galaxy Level 5
  • GitHub Submissions Level 3
  • Draw Letters
  • Community Group Solver
  • Indexing I Master
  • Cody Challenge Master

View badges

Feeds

Answered
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...

1 dag ago | 0

| accepted

Submitted


readdicomfolder
placeholder

1 dag ago | 1 download |

Answered
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 dagen ago | 0

| accepted

Answered
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:...

19 dagen ago | 1

| accepted

Answered
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...

22 dagen ago | 1

| accepted

Answered
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...

27 dagen ago | 0

| accepted

Answered
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...

ongeveer een maand ago | 0

Answered
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 ...

ongeveer een maand ago | 0

| accepted

Submitted


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

ongeveer 2 maanden ago | 1 download |

Thumbnail

Answered
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 ...

ongeveer 2 maanden ago | 0

Answered
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...

ongeveer 2 maanden ago | 0

Answered
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 ...

ongeveer 2 maanden ago | 0

Answered
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...

2 maanden ago | 0

Submitted


ifversion
Determine if the current version satisfies a version restriction

2 maanden ago | 1 download |

Answered
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';'...

3 maanden ago | 0

| accepted

Answered
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; ...

3 maanden ago | 0

| accepted

Answered
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...

3 maanden ago | 0

Answered
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...

3 maanden ago | 1

Answered
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 ...

3 maanden ago | 0

| accepted

Answered
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...

3 maanden ago | 1

Answered
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...

4 maanden ago | 0

Answered
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...

4 maanden ago | 1

Answered
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...

4 maanden ago | 0

Answered
Coding practices to simplify complex functions
I would suggest using a struct (or Name,Value pairs) for functions with more than 4 inputs. The attached function allows parsing...

4 maanden ago | 0

Answered
I have algorithm I have estimated the data pretty well , but I 'm not able to forecast it .
As the error message is telling you, the problem is here; error('Forecast:TooFewSamples','The data should contain at least %d ...

4 maanden ago | 0

Answered
AppDesigner in headless mode (without GUI)
I'm not aware of a way to use an AppDesigner app without the app, so I doubt you will like my suggestion: You should extract th...

4 maanden ago | 2

Answered
install add-on
Windows is picky with spaces in the path, so you need to add double quotes. The command below might do the trick. cd "C:\Pr...

5 maanden ago | 0

Answered
Help, my matlab mex file format is weird
When I download it, it isn't a plain text file. Often when people attempt to download a file from github, they save the web v...

5 maanden ago | 0

Answered
How to plot 4d bar with 4 column vectors?
For this small number of elements, I would try plot3, with the 4th dimension replaced by color. Once you get to many more dat...

5 maanden ago | 0

Answered
Why MATLAB R2023b requires macOS 12.6? Would 12.3 work?
Each Matlab release has a range of OS versions that are officially supported. This is only the official list. It is very well po...

5 maanden ago | 0

Load more