car v1.2-5


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