Description Note Author(s) References See Also Examples
Parametric densities (or count densities) will be fitted to user-given univariate data via maximum likelihood. The user more or less only enters the data. The program automatically searches for parametric distributions and parameters thereof that best describe the data. It then returns the ten best parameter families including the fitted parameters.
DistributionFitR comes in with a standard search list of 408 parametric distribution families as given by R-packages on CRAN.
The package contains the following functions:
globalfit
Given some univariate data, determines the best
fitting parametric distributions from R-packages
install.packages_DistributionFitR
Installs R-packages
that contribute to DistributionFitR's standard search list
getFamilies
Browsing for distribution families
getFamily
Find all distributions within a package
getParams
For a single distribution family, parameters are
determined; upper/lower limits and other chraracteristics are extracted
The most relevant function is globalfit
, with an S4 object
as return value. See the examples on how to display the results, such as
using summary
or
hist
.
Read more on the return value in
globalfit
and
globalfitSummary
.
For exotic packages used frequently or where parameter extraction is
time-consuming, users may be interested to do the latter once with
getFamilies
and save the results for subsequent usage as
argument in globalfit
. The functions
getFamily
and getParams
are lower-level
functions invoked by getFamilies
, and may be of usage for
other purposes.
Borui Niklas Zhu, Benedikt Geier, Moritz Kern, Kiril Dik, Moritz Lauff, Manuel J. Hentschel, Adrian Heppeler, Niclas Lietzow, Till Freihaut, Tim Glockner, Nadine Tampe, Leonardo Vela, Helene Peter, Martin Schlather, Yiqi Li
Maintainer: Borui Niklas Zhu, bzhu@mail.uni-mannheim.de
globalfit
,
install.packages_DistributionFitR
,
getFamilies
,
getFamily
,
getParams
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