car v1.0-5


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

Last month downloads


Date 2003/5/26
License GPL version 2 or newer
URL, http:/

Include our badge in your README