fitdistrplus is a great package.
But the documentation for the fitdist function makes
something very clear:
fitdistr(data, distr, ...)
distr [is] A character string "name" naming a distribution
for which the corresponding density function dname,
the corresponding distribution function pname and the
corresponding quantile function qname must be defined,
or directly the density function.
That is, it fits the *parameters* of a distribution,
it does not infer the *form* of the distribution.
If you tell it 'distr = "norm"' it will fit a mean and
standard deviation. It will not pick distr = "norm" by
itself, which is what I think the OP wanted.
descdist from that package will *help*, but its advice
is not infallible, and it considers a limited range of
distributions. (It doesn't deal with circular ones,
for example.)
On Thu, 9 Feb 2023 at 20:10, PIKAL Petr <petr.pi...@precheza.cz> wrote:
> Hi
>
> Others gave you more fundamental answers. To check the possible
> distribution
> you could use package
>
> https://cran.r-project.org/web/packages/fitdistrplus/index.html
>
> Cheers
> Petr
>
> > -----Original Message-----
> > From: R-help <r-help-boun...@r-project.org> On Behalf Of Bogdan Tanasa
> > Sent: Wednesday, February 8, 2023 5:35 PM
> > To: r-help <r-help@r-project.org>
> > Subject: [R] identify the distribution of the data
> >
> > Dear all,
> >
> > I do have dataframes with numerical values such as 1,9, 20, 51, 100 etc
> >
> > Which way do you recommend to use in order to identify the type of the
> > distribution of the data (normal, poisson, bernoulli, exponential,
> log-normal etc
> > ..)
> >
> > Thanks so much,
> >
> > Bogdan
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
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> > and provide commented, minimal, self-contained, reproducible code.
> ______________________________________________
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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