car v0.9-1


Monthly downloads



by John Fox

Companion to Applied Regression

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

Last month downloads


Date 2001/12/23
License GPL version 2 or newer
URL, http:/

Include our badge in your README