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effects (version 2.2-4)

effects-package: Effect Displays for Linear, Generalized Linear, Multinomial-Logit, and Proportional-Odds Logit Models

Description

Graphical and tabular effect displays, e.g., of interactions, for linear generalized linear, multinomial-logit, and proportional-odds logit models.

Arguments

Details

ll{ Package: effects Version: 2.2-4 Date: 2013/01/30 Depends: R (>= 2.4.0), lattice, grid, MASS, nnet, colorspace LazyLoad: yes LazyData: yes License: GPL (>= 2) URL: http://www.r-project.org, http://socserv.socsci.mcmaster.ca/jfox/ } This package creates effect displays for various kinds of models, as explained in the references. Typical usage is plot(allEffects(model)) or plot(allEffects(model), ask=FALSE), where model is an appropriate fitted-model object. Additional arguments to allEffects and plot can be used to customize the resulting displays. The function effect can be employed to produce an effect display for a particular term in the model, or to which terms in the model are marginal. See ?effect and ?plot.eff for details.

References

Fox, J. (1987) Effect displays for generalized linear models. Sociological Methodology 17, 347--361. Fox, J. (2003) Effect displays in R for generalised linear models. Journal of Statistical Software 8:15, 1--27, <http://www.jstatsoft.org/counter.php?id=75&url=v08/i15/effect-displays-revised.pdf&ct=1>. Fox, J. and R. Andersen (2006) Effect displays for multinomial and proportional-odds logit models. Sociological Methodology 36, 225--255. Fox, J. and J. Hong (2009). Effect displays in R for multinomial and proportional-odds logit models: Extensions to the effects package. Journal of Statistical Software 32:1, 1--24, <http://www.jstatsoft.org/v32/i01/>.