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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Euro sign when using latex interpreter
I can't find it right now, but I recall someone changing/updaing the LaTeX engine shipped with Matlab (but apparently this is no...

22 hours ago | 0

Answered
Use value app designer in script.m
The solution is simple: use a function instead of a script (although it is possible to write a script that will use this value)....

4 days ago | 0

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In matlabrc at 212
In general you should never touch files in the Matlab installation folder. In this case the solution is simple: you didn't cr...

4 days ago | 0

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Answered
Why does the values in the y coordinate system change when I maximize the window?
It looks like only the tick values are changing. Did you try setting the YTick property explicitly?

6 days ago | 1

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xlswrite different columns into excel each run
If you switch to writematrix, you can set 'WriteMode' to 'append'. If you want to stick with xlswrite, you will have to read th...

7 days ago | 0

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Do I need to buy other toolboxes to use Financial Toolbox
This indicates that the Financial Toolbox will not work properly (or possibly not at all) without the other toolboxes. This mean...

7 days ago | 2

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Highest-quality printed graphics with exportgraphics
For vector images only the contents of your figure matter: do you have raster images (e.g. with imshow or image)? If so, saving ...

7 days ago | 1

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Answered
repeated condition in a for loop
Conditions like 0<t<a*b should be split in Matlab to |0<t && t<a*b|. Note that your code will be overwriting the result and t...

7 days ago | 1

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I don't understand why the last line is wrong
Your syntax is confusing. I don't think this code does what you think it does. The a and B variables are overwritten every itera...

10 days ago | 0

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how to plot a summation function in matlab using a for loop
It's a good start. You should only put the summation part in the loop, and you should store the results in a vector. (remembe...

12 days ago | 1

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Submitted

readdicomfolder
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15 days ago | 0 downloads |

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Pre-allocating cell array of anonymous functions
You can pre-allocate the cell array itself, but the contents will have to be set in the loop itself: my_fun_array = cell(1,q_to...

15 days ago | 1

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Answered
express ODE without set a m file function
If you want to replicate the results, you need to replicate the function exactly: func=@(t,y,cd,m) [y(2);9.81-cd/m*y(2)*abs...

15 days ago | 0

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Answered
Unable to find function @(fd)(1/(1+A(fd/fdmax2)^2)) within E:\matlab\bin\hw3.m.
As you can see, the error here is different than what you report. Did you consider changing your function to have an output arg...

16 days ago | 0

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Answered
Date and time range picker from user
You might be interested in this example. You can easilly create an 'ok' button that will retrieve the set dates and times and cl...

17 days ago | 0

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urlread for links in html database
You can use sprintf to form the URLs. n=21001; url=sprintf('%s%d.dat','https://gml.noaa.gov/aftp/data/radiation/solrad/abq/20...

17 days ago | 0

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Renewal fee for matlab student version
There is no such thing as a renewal fee. You can keep using the student version of the release you purchased as long as you a...

18 days ago | 1

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Answered
Help to verify obtained plots from .txt file data.
You can find an explanation for the layout tools here. It is the toolbar you see when you edit your question. How did you try t...

20 days ago | 0

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ERROR: Array indices must be positive integers or logical values.
Actually, the result of your code is a missing variable. Once you fix that, you will have to edit your code to avoid X(0).

21 days ago | 0

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Textscan function ignores final delimiter when token is empty
From what I can tell, this is intended functionality. It is unable to match the format specification to an empty array, so it is...

24 days ago | 0

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How can I use codes downloaded in MATLAB file exchange?
With a sufficiently new release you can use the AddOn Manager to add submissions automatically. That should even take care of up...

25 days ago | 0

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How to define row and column of element in grid layout while initializing
The point you're missing is that the Layout argument is expected to be a struct. Since Layout.Row is not a valid Matlab field na...

28 days ago | 0

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how do i change the dicom file's brightness and contrast with slider bar in app designer
You should use caxis instead. That way you can adjust brightness and contrast directly without having to redraw the image every ...

1 month ago | 0

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How to make normal distribution curve from the bar chart?
Your data resolution is too low now that you have this bar chart. Unless you have the actual underlying data it is not possible ...

1 month ago | 0

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From a structure with "n" fields which each are a vector, I want to make a vector of length "n" made of the 3rd value of each vector of my structure.
The last solution you mention would be my suggestion, except you don't need the (:). file = struct('dist',{[1 2 3];[4 5 6]}); ...

1 month ago | 0

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How can I write duplicate files that are equal to or greater than 1GB to a excel file in Matlab?
You can use the unique function instead of your double loop (which could be improved by starting the second at (i+1) instead of ...

1 month ago | 0

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How can I use a for loop to interpolate to a certain number of points, and remove NaNs?
For the second part it is easy enough with a few cell vectors as an intermediate step (if you want to store the separate element...

1 month ago | 0

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Answered
Creating an inputted number of randomised arrays
Depending on what you want to do next, you can either create a cell vector in a loop, where each element is a matrix, or you can...

1 month ago | 1

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histcounts do not provide a reasonable output
With Matlab you generally don't have to be confused about functions. The documentation is one of the major advantages of Matlab ...

1 month ago | 0

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Answered
Changing line colors in nested for loop not working
Why are you using eval? There is no real reason you should need it. Same goes for length: what you actually mean is numel (or pe...

1 month ago | 0

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