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[ascl:1206.006] statpl: Goodness-of-fit for power-law distributed data

statpl estimates the parameter of power-law distributed data and calculates goodness-of-fit tests for them. Many objects studied in astronomy follow a power-law distribution function (DF), for example the masses of stars or star clusters. Such data is often analyzed by generating a histogram and fitting a straight line to it. The parameters obtained in this way can be severely biased, and the properties of the underlying DF, such as its shape or a possible upper limit, are difficult to extract. statpl is an (effectively) bias-free estimator for the exponent and the upper limit.

Code site:
https://www.astro.uni-bonn.de/download/software/
Described in:
http://adsabs.harvard.edu/abs/2009MNRAS.395..931M
Bibcode:
2012ascl.soft06006M

Views: 1453

ascl:1206.006
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