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Rik


Last seen: 1 day ago 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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Answered
How to unstructure the structure data?
If you use the normal dot indexing with a struct array, that will generate a comma separated list. You can put that between bra...

3 days ago | 1

| accepted

Answered
find function using wildcards
You can use the patterns introduced in R2020b: str={'/* GeoForschungsZentrum Potsdam ...

4 days ago | 1

| accepted

Answered
How can I use fprintf to print matrix by column?
fprintf tranverses the input in a column-major order. If you want to change that, you can't, so you will have to flip the array ...

4 days ago | 0

Answered
I wrote this code and it didn't work and its gave me " Unrecognized function or variable 'seq' " error , What I can do to sole this error??
Apparently your code doesn't guarantee the creation of the seq variable. Since it only occurs in block starting with Test=='T', ...

4 days ago | 0

Answered
How to check for data normality using kstest?
If you want to test if your data is from a standard normal distribution you should not change it before calling kstest. If yo...

5 days ago | 0

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Answered
How can I mouse pick up and move
You can do this with the WindowButtonDownFcn (or the equivalent for uifigures: ButtonDownFcn). Inside that callback you can ret...

7 days ago | 0

Answered
How can i read in a .txt file without the first column gets saved?
I prefer not to mix tasks. I first read my file, then I do the processing. It is generally a lot easier to remove parts of char ...

7 days ago | 0

Answered
Mathmatica saving Matlab files as Wolfram Mathmatica Package files
Your files have not changed, only the description your OS displays. You should look up a guide for your specific OS. On windo...

7 days ago | 0

| accepted

Answered
graph with two formulas
You probably want the errorbar function: x = 1:10:100; y = [20 30 45 40 60 65 80 75 95 90]; err = 8*ones(size(y)); errorbar(...

8 days ago | 0

| accepted

Solved


The Piggy Bank Problem
Given a cylindrical piggy bank with radius g and height y, return the bank's volume. [ g is first input argument.] Bonus though...

8 days ago

Answered
Pressure drop script is not running
If you have problems with a function, you should really check the documentation. The input function does not work like you expe...

8 days ago | 0

| accepted

Answered
How to extract common points from a csv file with same Id?
The easiest way is probably with histcounts (or histc on old releases).

11 days ago | 0

Answered
Is the Raspberry pi MATLAB and SIMULINK support package compatible with the raspberry pi 400?
The Pi 400 is identical to the Pi 4 in most relevant aspects, so I think you can expect it to work.

11 days ago | 0

Answered
How to add 3th moving ball
If you replace numbered variables with arrays you can use simple loops with indexing. With your current setup you will have to c...

11 days ago | 0

Answered
Replacing for loop in the function
What you want is not possible. Depending on what f is there might be ways to avoid the loop and use vector-operations instead, b...

13 days ago | 1

Answered
Why do I get the error '??? Output argument ‹variable› (and maybe others) not assigned during call to ‹function›.' ?
The error is in getgamspath. Consider this function: function [output1,output2]=IncorrectFunction output2=1; end Running it ...

13 days ago | 0

Answered
how to define and write the first line of a function while one of the inputs are a matrix with strings as entries (strings are defined in the body of function)
You can only have variable names in your function signature, not any indexing. function PS=level2(NOH,NOC,tetta,A)

16 days ago | 0

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Answered
How to load multiple .mat files containing timetables into the workspace and concatenate them vertically
If you use struct2cell (either inside your loop or in a cellfun) you can extract the data itself. Then you should be able to use...

17 days ago | 0

Answered
what is the alternative of cd in .executable app ?
You can use && to execute another command if the first one completes successfully: doscmd = [... 'cd /d "' pathTargetFiles...

18 days ago | 0

| accepted

Answered
Getting wrong results while calling a function.
Some numbers cannot be represented exactly in binary. You will either need to round both numbers to make sure they have the exac...

18 days ago | 1

Answered
How to access recent comments in the FileExchange?
In the activity feed you can select the 'Files' section, where you can see only the FEX-related activities. You do need to remem...

21 days ago | 1

| accepted

Answered
How the number of times n of the patchwork increase?
You don't check if your image is actually large enough to allow 6000 unique indices. You should either reduce the number of samp...

23 days ago | 1

| accepted

Answered
Plot median values in a bin (binned plot)
You can try <https://www.mathworks.com/matlabcentral/fileexchange/98239-gridbin gridbin>. I haven't used it myself, but it se...

23 days ago | 0

| accepted

Answered
Compiler Toolbox - Generate Portable versions
To my knowledge this is only possible if all target machines have Matlab installed (or the MCR). An alternative would be to u...

23 days ago | 0

Answered
lsqnonlin for 2 independent variables
You should merge x and y to a single variable (i.e. a 2 element vector). That way you can do this with a single call to lsqnonli...

23 days ago | 0

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Answered
Standalone App installation folder
I personally use this function to store persistent files regardless of OS and runtime version: <https://www.mathworks.com/matlab...

29 days ago | 0

Answered
Download files from https server using username and password
You should be able to use websave. You can provide a username and password in weboptions: weboptions

1 month ago | 2

| accepted

Answered
how to export multiple .mat files to csv using the automation script?
Load to a struct: base=sprintf('mat_file%d',1); S=load([base '.mat']); data=[S.([base '_Inputs']) S.([base '_Outputs'])]; ...

1 month ago | 0

| accepted

Answered
Split comma seperated values inside a cell in to multiple columns
S=load(websave('split_mat.mat','https://www.mathworks.com/matlabcentral/answers/uploaded_files/709142/split_mat.mat')); split_m...

1 month ago | 0

| accepted

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