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AICcmodavg (version 1.10)

Model selection and multimodel inference based on (Q)AIC(c)

Description

This package includes functions to create model selection tables based on Akaike's information criterion (AIC) and the second-order AIC (AICc), as well as their quasi-likelihood counterparts (QAIC, QAICc). Tables are printed with delta AIC and Akaike weights. The package also includes functions to conduct model averaging (multimodel inference) for a given parameter of interest or predicted values. Other handy functions enable the computation of relative variable importance, evidence ratios, and confidence sets for the best model. The present version works with linear models ('lm' class), generalized linear models ('glm' class), linear models fit by generalized least squares ('gls' class), linear mixed models ('lme' class), generalized linear mixed models ('mer' class), multinomial and ordinal logistic regressions ('multinom' and 'polr' classes).

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Version

Install

install.packages('AICcmodavg')

Monthly Downloads

9,453

Version

1.10

License

GPL (>= 2 )

Maintainer

Marc J Mazerolle

Last Published

October 8th, 2010

Functions in AICcmodavg (1.10)

pine

Strength of pine wood based on the density adjusted for resin content.
modavg

Compute Model-averaged Parameter Estimate (Multimodel Inference)
aictab

Create Model Selection Tables
beetle

Flour beetle data.
cement

Heat expended following hardening of Portland cement.
c_hat

Compute Estimate of Dispersion for Poisson and Binomial GLM's
AICcmodavg-package

Model Selection and Multimodel Inference Based on (Q)AIC(c)
importance

Compute Importance Values of Variable
dry.frog

Frog dehydration experiment on three different substrate types.
min.trap

Anuran larvae counts in minnow traps across pond type.
predictSE.mer

Computing Predicted Values and Standard Errors
evidence

Compute Evidence Ratio Between Two Models
predictSE.lme

Computing Predicted Values and Standard Errors
extractSE.mer

Extract SE of Fixed Effects of 'glmer' Fit
confset

Computing Confidence Set for the Kullback-Leibler Best Model
fam.link.mer

Extract Distribution Family and Link Function
modavgpred

Compute Model-averaged Predictions
AICc

Computing AIC, AICc, QAIC, and QAICc