lmomco: L-Moments, Censored L-Moments, Trimmed L-Moments, L-Comoments, and Many Distributions

Extensive functions for Lmoments (LMs) and probability-weighted moments (PWMs), distribution parameter estimation, LMs for distributions, LM ratio diagrams, multivariate Lcomoments, and asymmetric (asy) trimmed LMs (TLMs). Maximum likelihood and maximum product spacings estimation are available. Right-tail and left-tail LM censoring by threshold or indicator variable are available. LMs of residual (resid) and reversed (rev) residual life are implemented along with 13 quantile operators for reliability analyses. Exact analytical bootstrap estimates of order statistics, LMs, and LM var-covars are available. Harri-Coble Tau34-squared Normality Test is available. Distributions with L, TL, and added (+) support for right-tail censoring (RC) encompass: Asy Exponential (Exp) Power [L], Asy Triangular [L], Cauchy [TL], Eta-Mu [L], Exp. [L], Gamma [L], Generalized (Gen) Exp Poisson [L], Gen Extreme Value [L], Gen Lambda [L, TL], Gen Logistic [L], Gen Normal [L], Gen Pareto [L+RC, TL], Govindarajulu [L], Gumbel [L], Kappa [L], Kappa-Mu [L], Kumaraswamy [L], Laplace [L], Linear Mean Residual Quantile Function [L], Normal [L], 3p log-Normal [L], Pearson Type III [L], Polynomial Density-Quantile 3 and 4 [L], Rayleigh [L], Rev-Gumbel [L+RC], Rice [L], Singh Maddala [L], Slash [TL], 3p Student t [L], Truncated Exponential [L], Wakeby [L], and Weibull [L].

Version:	2.5.3
Depends:	R (≥ 3.5.0), utils
Imports:	goftest, Lmoments, MASS
Suggests:	copBasic
Published:	2025-09-24
DOI:	10.32614/CRAN.package.lmomco
Author:	William Asquith [aut, cre]
Maintainer:	William Asquith <william.asquith at ttu.edu>
License:	GPL-2 | GPL-3 [expanded from: GPL]
URL:	https://www.amazon.com/dp/1463508417/
NeedsCompilation:	no
Citation:	lmomco citation info
Materials:	NEWS
In views:	Distributions, ExtremeValue, Hydrology
CRAN checks:	lmomco results

Documentation:

Reference manual:

lmomco.html , lmomco.pdf

Downloads:

Package source:	lmomco_2.5.3.tar.gz
Windows binaries:	r-devel: lmomco_2.5.3.zip, r-release: lmomco_2.5.3.zip, r-oldrel: lmomco_2.5.3.zip
macOS binaries:	r-release (arm64): lmomco_2.5.3.tgz, r-oldrel (arm64): lmomco_2.5.3.tgz, r-release (x86_64): lmomco_2.5.3.tgz, r-oldrel (x86_64): lmomco_2.5.3.tgz
Old sources:	lmomco archive

Reverse dependencies:

Reverse depends:	SCI
Reverse imports:	copBasic, CSIndicators, DeductiveR, extremeStat, GLmom, GWEX, HyMETT, MCTrend, SPEI, TLMoments
Reverse suggests:	MGBT

Linking:

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