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Rik


Last seen: Today Active since 2017

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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Submitted


readdicomfolder
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1 day ago | 1 download |

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...

9 days ago | 0

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...

16 days 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...

17 days 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...

20 days 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...

24 days 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 ...

26 days ago | 0

Submitted


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

29 days ago | 3 downloads |

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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...

1 month 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...

2 months 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...

2 months 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...

2 months 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...

2 months ago | 0

Answered
Transforming workspace into table using script in MATLAB
Since it is a variable in the main workspace, it is already available in scripts. However, you should not use scripts for serio...

2 months ago | 0

| accepted

Answered
How to increase speed of a multi-vector calculation
The iterations are not interdependent, so you should be able to use a parfor loop instead. You could consider performing thos...

2 months ago | 0

Answered
Setting the editor (not Live editor) text and background colors from code
I always run MATLAB Schemer after I install Matlab. You can dig into the code to find the actual field you can use. It might no...

2 months ago | 1

Answered
My datastructure only contains the last subjects information. So in my for loop the structure is getting overwritten. How can I change this?
Your last line overwrite the struct every iteration. Using indexing will create an array: Datastructure(i) = Input_Data( .....

3 months ago | 0

Submitted


getUTC
get the current time in UTC

3 months ago | 1 download |

Submitted


ETA_disp
Display the estimated time of completion of a looping process

4 months ago | 1 download |

Answered
Insert array into larger array with unknown number of dimensions
It will probably hurt performance, but you could calculate the linear indices with sub2ind. Alternatively, you can use this tri...

4 months ago | 1

| accepted

Answered
precision of string conversion using string()
Let's first replicate what you show: my_fun([],@string) my_fun([pi]) my_fun([pi 1]) my_fun([pi 100]) my_fun([pi 127]) my_f...

4 months ago | 1

| accepted

Answered
Change colors (of groups) in scatter plot
As the documentation explains, you can set the colormap: a = [37 98 1; 35 94 1; 33 97 1; ...

4 months ago | 1

| accepted

Answered
Error using matlab.internal.math.interp1, Sample points must be unique.
interp1 is not intended to fit equations. There are other tools to do that. If you insist on using this function, you will eithe...

4 months ago | 0

Answered
Help creating a function
You need to call your function the same way you call builtin functions. If you use the green triangle, your function will be run...

4 months ago | 0

| accepted

Submitted


ifversion
Determine if the current version satisfies a version restriction

4 months ago | 3 downloads |

Answered
How to use pdist2 command for distance calculation?
I don't expect the performance to be great, but you can use the option of specifying the distance calculation function. D = pdi...

4 months ago | 0

Answered
How to calculate the dice similarity coefficient
Let's first see what you have in those mat files: s1=load('prediction.mat') s2=load('groundtruth.mat') So you have two equal-...

4 months ago | 0

| accepted

Answered
Could a Phd uses a license Trial in a commercial company?
You should read the license agreement for a trial license. Since the PhD is in this case working for a commercial company, the ...

5 months ago | 0

Answered
How to determine frequency of a specific matrix row in MATLAB?
Let's first create the same variables William created: N=10000; A=randi(9,N,1); B=randi(9,N,1); C=randi(9,N,1); X=[A,B,C]; W...

5 months ago | 1

Answered
Repeated Measures Bland-Altman
Your questions is a statistics question, not a Matlab question. But no, this is not appropriate, since the presumtion underlyin...

5 months ago | 1

| accepted

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