car v1.0-2


Monthly downloads



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
Ellipses Ellipses, Data Ellipses, and Confidence Ellipses
box.cox Box-Cox Family of Transformations
outlier.test Bonferroni Outlier Test
Deletion Diagnostics Deletion Diagnostics for Linear and Generalized Linear Models
linear.hypothesis Test Linear Hypothesis
Anova Anova Tables for Linear and Generalized Linear Models
Arrests Arrests for Marijuana Possession
Contrasts Functions to Construct Contrasts
reg.line Plot Regression Line
ceres.plots Ceres Plots
qq.plot Quantile-Comparison Plots
Transformation Axes Axes for Transformed Variables
spread.level.plot Spread-Level Plots
leverage.plots Regression Leverage Plots
box.tidwell Box-Tidwell Transformations
subsets Plot Output from regsubsets Function in leaps package
vif Variance Inflation Factors
hccm Heteroscedasticity-Corrected Covariance Matrices
logit Logit Transformation
which.names Position of Row Names Panel Function Coplots
recode Recode a Variable
Ask Change Argument to a Function Interactively
av.plots Added-Variable Plots
durbin.watson Durbin-Watson Test for Autocorrelated Errors
scatterplot Scatterplots with Boxplots
car-internal Internal car functions
box.cox.powers Multivariate Unconditional Box-Cox Transformations
Var Variance-Covariance Matrices (deprecated)
box.cox.var Constructed Variable for Box-Cox Transformation
scatterplot.matrix Scatterplot Matrices
n.bins Number of Bins for Histogram
effect Functions For Constructing Effect Plots
cr.plots Component+Residual (Partial Residual) Plots
ncv.test Score Test for Non-Constant Error Variance
Chirot The 1907 Romanian Peasant Rebellion
Robey Fertility and Contraception
Adler Experimenter Expectations
Ericksen The 1980 U.S. Census Undercount
Ornstein Interlocking Directorates Among Major Canadian Firms
Angell Moral Integration of American Cities
States Education and Related Statistics for the U.S. States
Mroz U.S. Women's Labor-Force Participation
Leinhardt Data on Infant-Mortality
Baumann Methods of Teaching Reading Comprehension
Cowles Cowles and Davis's Data on Volunteering
Ginzberg Data on Depression
Can.pop Canadian Population Data
Greene Refugee Appeals
Anscombe U. S. State Public-School Expenditures
Quartet Four Regression Datasets
Mandel Contrived Collinear Data
Hartnagel Canadian Crime-Rates Time Series
US.pop Population of the United States
Vocab Vocabulary and Education
Burt Fraudulent Data on IQs of Twins Raised Apart
Florida Florida County Voting
Davis Self-Reports of Height and Weight
Freedman Crowding and Crime in U. S. Metropolitan Areas
Bfox Canadian Women's Labour-Force Participation
Blackmoor Exercise Histories of Eating-Disordered and Control Subjects
Moore Status, Authoritarianism, and Conformity
Duncan Duncan's Occupational Prestige Data
UN GDP and Infant Mortality
SLID Survey of Labour and Income Dynamics
Prestige Prestige of Canadian Occupations
DavisThin Davis's Data on Drive for Thinness
Chile Voting Intentions in the 1988 Chilean Plebiscite
Sahlins Agricultural Production in Mazulu Village
Friendly Format Effects on Recall
Guyer Anonymity and Cooperation
Migration Canadian Interprovincial Migration Data
Womenlf Canadian Women's Labour-Force Participation
No Results!

Last month downloads


Date 2003/3/14
License GPL version 2 or newer
URL, http:/

Include our badge in your README