Extending the Range of Functions for Probability Distributions

A consistent, unified and extensible framework for estimation of parameters for probability distributions, including parameter estimation procedures that allow for weighted samples; the current set of distributions included are: the standard beta, The four-parameter beta, Burr, gamma, Gumbel, Johnson SB and SU, Laplace, logistic, normal, symmetric truncated normal, truncated normal, symmetric-reflected truncated beta, standard symmetric-reflected truncated beta, triangular, uniform, and Weibull distributions; decision criteria and selections based on these decision criteria.


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Reference manual

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install.packages("ExtDist")

0.6-3 by A. Jonathan R. Godfrey, 2 years ago


Browse source code at https://github.com/cran/ExtDist


Authors: Haizhen Wu <h.wu2@massey.ac.nz>, A. Jonathan R. Godfrey <A.J.Godfrey@massey.ac.nz>, Kondaswamy Govindaraju <k.govindaraju@massey.ac.nz>, Sarah Pirikahu <s.pirikahu@massey.ac.nz>


Documentation:   PDF Manual  


Task views: Probability Distributions


GPL (>= 2) license


Imports numDeriv, optimx

Suggests ggplot2, knitr, PerformanceAnalytics, stats, SuppDists, truncdist, VGAM, xtable


See at CRAN