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Rik


Last seen: Today
1.894 total contributions 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
error when using 'find' function
If you store output of the find function to a temporary variable, you will notice that the error occurs when that temporary vari...

etwa eine Stunde ago | 0

Answered
How to solve this error?
You are close, but you forgot that the code below returns an array. month==[4,6,9,11] Use parantheses to group your coditions....

etwa 2 Stunden ago | 0

| accepted

Answered
Adding Noise To A Folder OF Images in A Loop
If you don't understand how a function works you should read the documentation. It contains several examples and shows you how t...

etwa 2 Stunden ago | 0

Answered
scatter plot covers the axes values
If you manually set the tick labels you can set an arbitrary distance between the axis and the label. If this doesn't work you m...

etwa 3 Stunden ago | 0

Answered
How to automatically display a figure in fullscreen in MATLAB2016?
It doesn't look it is possible to draw over the taskbar like that in older versions. The closest you will probably get is with s...

etwa 4 Stunden ago | 0

Answered
Counting the number of occurences for specific values in an array
a=[ 1 2 3 4 5 5 4 3 2 1 ] ; histcounts(a) If you have non-integer data you can use the unique function to convert your vector ...

etwa 15 Stunden ago | 0

Answered
How can I create a structure array for two files?
You can treat fields of a struct just like any other variable: ECGData=struct;%create empty struct, this isn't mandatory ECGDa...

etwa 16 Stunden ago | 0

Answered
How to calculate average for data every nth row?
Something like this should do the trick: data=rand(900,9); row_interval=30; avg=zeros(1,row_interval); stderr=zeros(1,row_...

etwa 18 Stunden ago | 0

Answered
how to make a table as a figure ?
There is an example about how to do this in the documentation of the uitable function.

etwa 19 Stunden ago | 0

Answered
Can anyone help me with understanding this code?
Did you read the documentation for arrayfun? That seems like a good place to start. The part with 'un' is a bit more tricky tho...

etwa 21 Stunden ago | 0

Answered
How can i read exact value (as it is) from csv file and separate data using empty row? ver.16b
The readfile function you can find here will read a file to a cell array, one line per cell. It will preserve blank lines and le...

ein Tag ago | 0

Answered
text on image position
You can set the Unit property to Normalized. Note that this uses normal axis coordinates, so the y-axis is flipped. (the full b...

ein Tag ago | 0

Answered
Average multiple vectors with different lengths
Pad the shorter vectors with NaN and use the 'omitnan' flag in mean.

2 Tage ago | 0

Answered
pop up menu & push button
You can retrieve the selections like this String1=get(handles.popmenu1,'String'); Selection1=String1{get(handles.popmenu1,'Val...

2 Tage ago | 0

Answered
How can I query the content of a cell?
The same way you get the contents of any cell array: use curly braces. YourCell{n}==0 isnan(YourCell{n}) isempty(YourCell{n})...

2 Tage ago | 0

Answered
Read Text File in Matlab
There are many ways to do this. One of the many ways is using the code below. It makes use of the readfile function which you ca...

2 Tage ago | 0

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Answered
How to get a period of cosinus function ?
Because this is homework, I won't provide a copy-paste ready solution. If you follow the example from the documentation for fft...

2 Tage ago | 0

Answered
Extract Strings of different lengths
The code below assumes there is only a single match for 'ETSL'. StartMETAR=strfind(rawdata,'ETSL')-19; EndMETAR=strfind(rawdat...

2 Tage ago | 0

| accepted

Answered
keep scientific notation in plot title
If you want a specific notation you can enforce that with the sprintf function. Otherwise Matlab will _automagically_ pick a for...

3 Tage ago | 0

Answered
Unable to perform assignment because the left and right sides have a different number of elements.
tNow is a vector, so you can't store it in a scalar, which is what you are trying to do. You probably want to replace every inst...

4 Tage ago | 0

Answered
Separate values in a matrix greater than 0
So like this? isFlood=water_height>0;

4 Tage ago | 0

| accepted

Answered
HELP for Error in gui_mainfcn(sui_State, varargin {:})
You have a problem if you don't have the fig file of a GUIDE GUI. You need both the m file and the fig file. This is one of the ...

4 Tage ago | 0

Answered
Hold on in for loop doesn't work
You are calling figure inside the loop. You need to put that outside of the loop, or make sure another way that you have a singl...

4 Tage ago | 0

Answered
principle component analysis (PCA)
Read the documentation: coeff = pca(X) returns the principal component coefficients, also known as loadings, for the n-by-p dat...

5 Tage ago | 0

Answered
Extracting "endpoints" from a skeleton image to enable a circle to be defined.
This can probably be improved, but this will find an approximate circle. It will slightly underestimate the radius, as it tries ...

5 Tage ago | 1

Answered
Fit two data sets with 3 fit parameters, one parameter is the same
As far as I'm aware, you can only fit a single function at once, so you can try something like this: f1 = @ (p,x1) p(1)./sqrt((...

5 Tage ago | 1

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Answered
Matlab system command doesn't work properly on linux platform
If you want to capture the output to a Matlab variable, you should use the second output: [status,response]=system('hostname -s...

5 Tage ago | 0

Answered
I had write the function for find the difference of maximum and minimum from each martix row and express it as matrix .
If you want a column instead of a row, why not transpose? And if you want both outputs, you will have to use a syntax with two o...

5 Tage ago | 0

Answered
how to run a code putting conditions on names cell
Convert the array to a 3D array: (patient,session,param_index). You can fill missing slots with NaN. That way it is just a matte...

5 Tage ago | 0

| accepted

Answered
How to suppress warnings when running Simulink simulation programmatically?
Unless Simulink is not playing nice, this should work: ... w=warning('off','all'); sim('rocket_sim'); warning(w); fprintf('...

5 Tage ago | 0

| accepted

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