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statmod (version 1.5.1)

Statistical Modeling

Description

A collection of algorithms and functions to aid statistical modeling. Includes limiting dilution analysis (aka ELDA), growth curve comparisons, mixed linear models, heteroscedastic regression, inverse-Gaussian probability calculations, Gauss quadrature and a secure convergence algorithm for nonlinear models. Also includes advanced generalized linear model functions including Tweedie and Digamma distributional families, secure convergence and exact distributional calculations for unit deviances.

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Version

Install

install.packages('statmod')

Monthly Downloads

91,130

Version

1.5.1

License

GPL-2 | GPL-3

Maintainer

Gordon Smyth

Last Published

October 9th, 2025

Functions in statmod (1.5.1)

meanT

Mean t-Statistic Between Two Groups of Growth Curves
mscale

M Scale Estimation
mixedModel2

Fit Mixed Linear Model with 2 Error Components
plot.limdil

Plot or print an object of class limdil
growthcurve

Compare Groups of Growth Curves
logmdigamma

Log Minus Digamma Function
hommel.test

Test Multiple Comparisons Using Hommel's Method
invgauss

Inverse Gaussian Distribution
permp

Exact permutation p-values
matvec

Multiply a Matrix by a Vector
statmod-package

Introduction to the StatMod Package
welding

Data: Tensile Strength of Welds
power.fisher.test

Power of Fisher's Exact Test for Comparing Proportions
qresiduals

Randomized Quantile Residuals
sage.test

Exact Binomial Tests For Comparing Two SAGE Libraries (Obsolete)
remlscore

REML for Heteroscedastic Regression
remlscoregamma

Approximate REML for Gamma Regression with Structured Dispersion
tweedie

Tweedie Generalized Linear Models
glmnb.fit

Fit Negative Binomial Generalized Linear Model with Log-Link
fitNBP

Negative Binomial Model for SAGE Libraries with Pearson Estimation of Dispersion
glmgam.fit

Fit Gamma Generalized Linear Model by Fisher Scoring with Identity Link
glm.scoretest

Score Test for Adding a Covariate to a GLM
gauss.quad.prob

Gaussian Quadrature with Probability Distributions
expectedDeviance

Expected Value of Scaled Unit Deviance for Linear Exponential Families
Digamma

Digamma Generalized Linear Model Family
forward

Forward Selection of Covariates for Multiple Regression
elda

Extreme Limiting Dilution Analysis
gauss.quad

Gaussian Quadrature