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RelDists

In this package are available multiple useful distributions for reliability analysis. With this package it is possible to estimate parameters and fit regression models within GAMLSS framework.

Installation

To install the RelDists package, follow the instructions below:

# Installing from CRAN:
install.packages("RelDists")

# Or the development version from GitHub:
# install.packages("pak")
pak::pak("fhernanb/RelDists")

You can visit the package website to explore the vignettes (articles) and function reference.

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Version

Install

install.packages('RelDists')

Monthly Downloads

3,300

Version

1.0.1

License

GPL-3

Maintainer

Freddy Hernandez

Last Published

February 24th, 2026

Functions in RelDists (1.0.1)

IW

The Inverse Weibull family
GIW

The Generalized Inverse Weibull family
GammaW

The Gamma Weibull family
MOK

The Marshall-Olkin Kappa family
MW

The Modified Weibull family
LIN

The Lindley family
LW

The Log-Weibull family
SZMW

The Sarhan and Zaindin's Modified Weibull family
RW

The Reflected Weibull family
KumIW

The Kumaraswamy Inverse Weibull family
dAddW

The Additive Weibull distribution
ExW

The Extended Weibull family
dBGE

The Beta Generalized Exponentiated distribution
WP

The Weibull Poisson family
WGEE

The Weigted Generalized Exponential-Exponential family
WG

The Weibull Geometric family
MOEW

The Marshall-Olkin Extended Weibull family
MOEIW

The Marshall-Olkin Extended Inverse Weibull family
WALD

The Wald family
dEOFNH

The Extended Odd Frechet-Nadarajah-Haghighi
dBS3

The Birnbaum-Saunders distribution - Bourguignon & Gallardo (2022)
dEGG

The four parameter Exponentiated Generalized Gamma distribution
QXGP

The Quasi XGamma Poisson family
PL

The Power Lindley family
dBS2

The Birnbaum-Saunders distribution - Santos-Neto et al. (2014)
dBS

The Birnbaum-Saunders distribution
OW

The Odd Weibull family
dCS2e

The Cosine Sine Exponential distribution
NEE

New Exponentiated Exponential family
dEEG

The Extended Exponential Geometric distribution
dGMW

The Generalized modified Weibull distribution
dEMWEx

The Exponentiated Modified Weibull Extension distribution
dGIW

The Generalized Inverse Weibull distribution
dGGD

The Generalized Gompertz distribution
dGammaW

The Gamma Weibull distribution
dIW

The Inverse Weibull distribution
dEW

The Exponentiated Weibull distribution
dKumIW

The Kumaraswamy Inverse Weibull distribution
dLIN

Lindley distribution
dExWALD

The Ex-Wald distribution
dLW

The Log-Weibull distribution
dMOEW

The Marshall-Olkin Extended Weibull distribution
dMOEIW

The Marshall-Olkin Extended Inverse Weibull distribution
dFWE

The Flexible Weibull Extension distribution
dMOK

The Marshall-Olkin Kappa distribution
dEXL

The exponentiated XLindley distribution
dOW

The Odd Weibull Distribution
dExW

The Extended Weibull distribution
dCJ2

The two-parameter Chris-Jerry distribution
dMW

The Modified Weibull distribution
dNEE

The New Exponentiated Exponential distribution
dGWF

Generalized Weibull distribution
dWP

The Weibull Poisson distribution
dWGEE

The Weighted Generalized Exponential-Exponential distribution
logLik_NEE

logLik function for NEE
logLik_CJ2

logLik function for CJ2
equipment

Electronic equipment data
exwstpt

Auxiliar function for the Ex-Wald distribution
den_exw

Auxiliar den_exw function for the Ex-Wald distribution
fitexw

Auxiliar function for the Ex-Wald distribution
initValuesFWE

initValuesFWE
initValuesOW

Initial values and search region for Odd Weibull distribution
dWALD

The Wald distribution
myOW_region

Custimized region search for odd Weibull distribution
dPL

The Power Lindley distribution
dWG

The Weibull Geometric distribution
mice

Mice mortality data
dRW

The Reflected Weibull distribution
dSZMW

The Sarhan and Zaindin's Modified Weibull distribution
pwald

Auxiliar pwald function for the Ex-Wald distribution
summary.initValOW

Summary of initValOW objects
uandv

Auxiliar function for the Ex-Wald distribution
rew

Auxiliar function to generate random values for Ex-Wald distribution
param.startOW

Initial values extraction for Odd Weibull distribution
negllexw

Auxiliar function to obtain minus loglik for Ex-Wald
dQXGP

The Quasi XGamma Poisson distribution
dRNMW

The Reduced New Modified Weibull distribution
estim_mu_sigma_NEE

Initial values for NEE distribution
estim_mu_sigma_CJ2

initValuesCJ2
wald_start

Initial values for WALD
BS

The Birnbaum-Saunders family
EGG

The four parameter Exponentiated Generalized Gamma family
BGE

The Beta Generalized Exponentiated family
BS3

The Birnbaum-Saunders family - Bourguignon & Gallardo (2022)
EMWEx

The Exponentiated Modifien Weibull Extension family
BS2

The Birnbaum-Saunders family - Santos-Neto et al. (2014)
CS2e

The Cosine Sine Exponential family
CJ2

The two-parameter Chris-Jerry distribution family
AddW

The Additive Weibull family
EEG

The Extended Exponential Geometric family
GMW

The Generalized Modified Weibull family
GGD

The Generalized Gompertz family
EOFNH

The Extended Odd Frechet-Nadarajah-Haghighi family
ExWALD

The Ex-Wald family
FWE

The Flexible Weibull Extension family
EW

The Exponentiated Weibull family
EXL

The exponentiated XLindley family