EpsilonSkewNormal no longer available in Fitdist or Distributuion Fitter

조회 수: 5 (최근 30일)
Siamak
Siamak 2023년 3월 29일
댓글: Siamak 2023년 4월 6일
Hi,
I have noticed that EpsilonSkewNormal is removed from fitdist and Distribution Fitter since R2023a (was available in R2022a-b), I could not find the reason or announcement in the release note. I was wondering what is the reason behind this removal.
Thank you

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Siamak
Siamak 2023년 4월 6일
편집: Siamak 2023년 4월 6일
To close this question
EpsilonSkewNormal has not been a part of fitdist or Distribution Fitter.
It is defined in one of examples in econometric toolbox (see below). I use this distribution frequently. When I moved my code to the R2023a, I forgot to run the following command
makedist -reset
To ensure that the probability distribution framework recognizes the new distribution.
  댓글 수: 2
the cyclist
the cyclist 2023년 4월 6일
Glad you figured it out.
It's surprising to me that my google search for EpsilonSkewNormal did not turn up that documentation page.
Siamak
Siamak 2023년 4월 6일
Yes it is surprising.
Thank you for taking the time to answer this question.

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the cyclist
the cyclist 2023년 3월 29일
I just tried to run
pd = fitdist(randn(20,1),"EpsilonSkewNormal")
in R2022b, and got
Error using fitdist
Distribution name 'EpsilonSkewNormal' is unrecognized.
I also don't see that distribution listed in the R2022b documentation. (I don't have any older versions on my machine.)
So, if it is in some older version, you might need to look in older release notes.
Also, are you sure this was not a custom probability distribution object? I can find no trace of it on the internet.
  댓글 수: 4
the cyclist
the cyclist 2023년 3월 29일
What do you get when you type
which fitdist -all
at the command prompt?
Siamak
Siamak 2023년 3월 29일
which fitdist -all
E:\Logiciel\MATLAB\R2022b\toolbox\stats\stats\fitdist.m
E:\Logiciel\MATLAB\R2022b\toolbox\stats\gpu\@gpuArray\fitdist.m % gpuArray method

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