Community Profile # 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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getUTC
get the current time in UTC

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ETA_disp
Display the estimated time of completion of a looping process

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...

30 days ago | 1

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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...

1 month ago | 1

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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; ...

1 month ago | 1

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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...

1 month ago | 0

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...

1 month ago | 0

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Submitted

ifversion
Determine if the current version satisfies a version restriction

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...

2 months ago | 0

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-...

2 months ago | 0

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 ...

2 months ago | 0

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...

2 months ago | 1

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

2 months ago | 1

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calculating and plotting 95% confidence intervals
A 95% confidence interval means 2 standard deviations on either side. So you simply need to insert *2 in your code.

2 months ago | 0

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how can I plot the .jpg into a different part of an axis
You can use the image function to insert an image object in an axes. Below you see an example. As you can see, you will have to...

2 months ago | 0

Is it possible to delete "output argument warning"?
Why are you printing an error message with fprintf instead of throwing an exception with error function? Also, I personally pre...

3 months ago | 0

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xline with 1x3 array for the lable
The difference is having a scalar struct with an array field, or a struct array with scalar fields. Dot indexing the latter will...

3 months ago | 0

Submitted

text2im
Convert text to image 3 months ago | 0

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Submitted

regexp_outkeys
Extend the regexp function for old Matlab releases

Have you encountered different results using "parfor" vs. "for" loop using Matlab 2019b
Put simply, each worker in the parallel pool inherits the workspace from before the loop. So if you put your rng before the loo...

3 months ago | 0

is it possible to use multiple functions in cellfun
This is only possible if these functions have an output. But the more important question is why you want to use cellfun for a m...

3 months ago | 0

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Matlab update to 1.4.2.1?
That is not an update to Matlab itself (which Mathworks will always write all caps). What you see is an update to a File Exchang...

3 months ago | 1

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how to save a midi message?
I haven't tested it myself, but <https://www.mathworks.com/matlabcentral/fileexchange/27470-midi-tools this> was on the first pa...

3 months ago | 1

Make two cell vector in one
A simple loop will do: A = {rand(1,5) , rand(1,5)}; B = {rand(1,5) , rand(1,5)}; C = cell(size(A)); for n=1:numel(C) C{...

3 months ago | 1

Im trying to classify dental xray images in jpg format using SqueezeNet but there is error in the first input layer as it accepts only 227x227x3 whereas the jpg image data
The common strategy for using grayscale images in networks designed for color input, is to either replicate the images or to use...

3 months ago | 0

Function for sanitizing field name strings
You can use matlab.lang.makeValidName: s = 'name with spaces and a . in the middle'; matlab.lang.makeValidName(s)

3 months ago | 1

| accepted