I have Statistics and Machine Learning Toolbox but cannot use allfitdist

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Josefin Hedberg
Josefin Hedberg 2016-6-10
评论： Ginés Aníbal 2022-8-16
I tried running a script I found on http://blogs.mathworks.com/pick/2012/02/10/finding-the-best/ to learn how to find the best distribution fit. When I run the script
% Create a normally distributed (mu: 5, sigma: 3) random data set
x = normrnd(5, 3, 1e4, 1);
% Compute and plot results. The results are sorted by "Bayesian information % criterion".
[D, PD] = allfitdist(x, 'PDF');
I get this error message:
Undefined function or variable 'allfitdist'.
Error in Find_best_distribution (line 7) [D, PD] = allfitdist(x, 'PDF')
I tried using the ver command to confirm that I have the Statistics toolbox and got this:
MATLAB Version 9.0 (R2016a) Statistics and Machine Learning Toolbox Version 10.2 (R2016a)
I also tried the disttool command and that worked.
Why can I not run allfitdist?
Thanks, Josefin

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采纳的回答

Marc
Marc 2016-6-10
Did you download allfitdist.m from the file exchange? This is not a Mathworks function. If you go back to the blog, there is a link that will take you to the file exchange for allfitdist. Download the file and make sure that you put it in a folder on your path

更多回答（1 个）

Ginés Aníbal
Ginés Aníbal 2022-8-16
Thank you very much Marc!!!!
The zip that indicated for the download, did not contain that added function.
I'm trying to get conditional probabilities between 2 (for now), and 3 hydrological variables.
I will be aware that the authors have news with the extension for more than 2 variables...
best regards, Ginés.
  2 个评论
Ginés Aníbal
Ginés Aníbal 2022-8-16
Hello Walter: I did not finish the explanation well: the link indicated 'allfitdist' below, but not in the zip. I downloaded it separately, and as far as I've tried, it works.
But I'll follow your advice, in case this adds any bias correction.
thanks, and best regards

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