car v1.2-10


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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. Where relevant, the functions in car are consistent with na.action = na.omit or na.exclude.

Functions in car

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