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This package implements both the discrete and continuous maximum likelihood estimators for fitting the power-law distribution to data using the methods described in Clauset et al, 2009. It also provides function to fit log-normal and Poisson distributions. Additionally, a goodness-of-fit based approach is used to estimate the lower cut-off for the scaling region.
The code developed in this package was influenced from the python and R code found at Aaron Clauset’s website. In particular, the R code of Laurent Dubroca and Cosma Shalizi.
To cite this package in academic work, please use:
Gillespie, C. S. “Fitting heavy tailed distributions: the poweRlaw package.” Journal of Statistical Software, 64(2) 2015. (pdf).
For a different way of handling powerlaw type distributions, see
Gillespie, C.S. ” Estimating the number of casualties in the American Indian war: a Bayesian analysis using the power law distribution.” Annals of Applied Statistics, 2017. (pdf)
This package is hosted on CRAN and can be installed in the usual way:
Alternatively, the development version can be install from from github using the devtools package:
To get started, load the package
then work through the four vignettes (links to the current CRAN version):
Alternatively, you can access the vignettes from within the package:
The plots below show the line of best fit to the Moby Dick and blackout data sets (from Clauset et al, 2009). 
Development of this package was supported by Jumping Rivers
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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