car v1.0-12


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by John Fox

Companion to Applied Regression

This package accompanies J. Fox, An R and S-PLUS Companion to Applied Regression, Sage, 2002. The package contains mostly functions for applied regression, linear models, and generalized linear models, with an emphasis on regression diagnostics, particularly graphical diagnostic methods. There are also some utility functions. With some exceptions, I have tried not to duplicate capabilities in the basic distribution of R, nor in widely used packages. Some of the functions in car will use functions in the MASS package, if it is present; the subsets function graphs objects produced by the regsubsets function in the leaps package. Where relevant, the functions in car are consistent with na.action = na.omit or na.exclude.

Functions in car

Name Description
av.plots Added-Variable Plots
Cook's Distances Cook's Distances for Linear and Generalized Linear Models
logit Logit Transformation
linear.hypothesis Test Linear Hypothesis
box.cox Box-Cox Family of Transformations
Ellipses Ellipses, Data Ellipses, and Confidence Ellipses
levene.test Levene's Test
which.names Position of Row Names
influence.plot Regression Influence Plot
box.cox.var Constructed Variable for Box-Cox Transformation Panel Function Coplots
durbin.watson Durbin-Watson Test for Autocorrelated Errors
Contrasts Functions to Construct Contrasts
leverage.plots Regression Leverage Plots
cr.plots Component+Residual (Partial Residual) Plots
scatterplot Scatterplots with Boxplots
ncv.test Score Test for Non-Constant Error Variance
n.bins Number of Bins for Histogram
Var Variance-Covariance Matrices (deprecated)
Transformation Axes Axes for Transformed Variables
Ask Change Argument to a Function Interactively
scatterplot.matrix Scatterplot Matrices
reg.line Plot Regression Line
spread.level.plot Spread-Level Plots
hccm Heteroscedasticity-Corrected Covariance Matrices
vif Variance Inflation Factors
box.cox.powers Multivariate Unconditional Box-Cox Transformations
subsets Plot Output from regsubsets Function in leaps package
box.tidwell Box-Tidwell Transformations
ceres.plots Ceres Plots
Anova Anova Tables for Linear and Generalized Linear Models
car-internal Internal car functions
outlier.test Bonferroni Outlier Test
qq.plot Quantile-Comparison Plots
recode Recode a Variable
DavisThin Davis's Data on Drive for Thinness
Adler Experimenter Expectations
Leinhardt Data on Infant-Mortality
SLID Survey of Labour and Income Dynamics
Robey Fertility and Contraception
Florida Florida County Voting
Hartnagel Canadian Crime-Rates Time Series
Duncan Duncan's Occupational Prestige Data
Angell Moral Integration of American Cities
Sahlins Agricultural Production in Mazulu Village
Prestige Prestige of Canadian Occupations
Anscombe U. S. State Public-School Expenditures
Quartet Four Regression Datasets
Friendly Format Effects on Recall
Chirot The 1907 Romanian Peasant Rebellion
Davis Self-Reports of Height and Weight
Blackmoor Exercise Histories of Eating-Disordered and Control Subjects
Ginzberg Data on Depression
UN GDP and Infant Mortality
Mroz U.S. Women's Labor-Force Participation
Bfox Canadian Women's Labour-Force Participation
Vocab Vocabulary and Education
Ornstein Interlocking Directorates Among Major Canadian Firms
Freedman Crowding and Crime in U. S. Metropolitan Areas
Guyer Anonymity and Cooperation
Mandel Contrived Collinear Data
Can.pop Canadian Population Data
US.pop Population of the United States
Burt Fraudulent Data on IQs of Twins Raised Apart
Womenlf Canadian Women's Labour-Force Participation
Cowles Cowles and Davis's Data on Volunteering
Greene Refugee Appeals
Baumann Methods of Teaching Reading Comprehension
Moore Status, Authoritarianism, and Conformity
Chile Voting Intentions in the 1988 Chilean Plebiscite
Ericksen The 1980 U.S. Census Undercount
Migration Canadian Interprovincial Migration Data
States Education and Related Statistics for the U.S. States
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Date 2004/4/30
License GPL version 2 or newer
Packaged Wed May 5 09:02:58 2004; John Fox

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