effects-package {effects}R Documentation

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.

Details

Package: effects
Version: 2.1-0
Date: 2011/08/02
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/

Index:

Arrests                 Arrests for Marijuana Possession
BEPS                    British Election Panel Study
Cowles                  Cowles and Davis's Data on Volunteering
Prestige                Prestige of Canadian Occupations
Titanic                 Survival of Passengers on the Titanic
WVS                     World Values Surveys
Wells                   Well Switching in Bangladesh
effect                  Functions For Constructing Effect Plots
effects-deprecated      Deprecated Function in effects Package
summary.eff             Summarizing, Printing, and Plotting Effects
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.

Author(s)

John Fox <jfox@mcmaster.ca>, Sanford Weisberg, and Jangman Hong. We are grateful to Robert Andersen, David Firth, and Michael Friendly, for various suggestions.

Maintainer: John Fox <jfox@mcmaster.ca>

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.


[Package effects version 2.1-0 Index]