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car (version 1.0-17)

Companion to Applied Regression

Description

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.

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Version

Install

install.packages('car')

Monthly Downloads

409,655

Version

1.0-17

License

GPL version 2 or newer

Maintainer

John Fox

Last Published

September 27th, 2024

Functions in car (1.0-17)

Contrasts

Functions to Construct Contrasts
Anova

Anova Tables for Linear and Generalized Linear Models
qq.plot

Quantile-Comparison Plots
scatterplot

Scatterplots with Boxplots
influence.plot

Regression Influence Plot
recode

Recode a Variable
box.cox.var

Constructed Variable for Box-Cox Transformation
scatterplot.matrix

Scatterplot Matrices
some

Sample a Few Elements of an Object
levene.test

Levene's Test
ceres.plots

Ceres Plots
logit

Logit Transformation
car-internal

Internal car functions
reg.line

Plot Regression Line
cr.plots

Component+Residual (Partial Residual) Plots
Ask

Change Argument to a Function Interactively
leverage.plots

Regression Leverage Plots
box.cox.powers

Multivariate Unconditional Box-Cox Transformations
linear.hypothesis

Test Linear Hypothesis
durbin.watson

Durbin-Watson Test for Autocorrelated Errors
ncv.test

Score Test for Non-Constant Error Variance
vif

Variance Inflation Factors
subsets

Plot Output from regsubsets Function in leaps package
Transformation Axes

Axes for Transformed Variables
av.plots

Added-Variable Plots
Var

Variance-Covariance Matrices (deprecated)
which.names

Position of Row Names
Ellipses

Ellipses, Data Ellipses, and Confidence Ellipses
Cook's Distances

Cook's Distances for Linear and Generalized Linear Models
n.bins

Number of Bins for Histogram
spread.level.plot

Spread-Level Plots
box.cox

Box-Cox Family of Transformations
panel.car

Panel Function Coplots
symbox

Boxplots for transformations to symmetry
hccm

Heteroscedasticity-Corrected Covariance Matrices
box.tidwell

Box-Tidwell Transformations
outlier.test

Bonferroni Outlier Test
Robey

Fertility and Contraception
Blackmoor

Exercise Histories of Eating-Disordered and Control Subjects
Greene

Refugee Appeals
Freedman

Crowding and Crime in U. S. Metropolitan Areas
States

Education and Related Statistics for the U.S. States
SLID

Survey of Labour and Income Dynamics
Leinhardt

Data on Infant-Mortality
Florida

Florida County Voting
Migration

Canadian Interprovincial Migration Data
Cowles

Cowles and Davis's Data on Volunteering
Hartnagel

Canadian Crime-Rates Time Series
Can.pop

Canadian Population Data
Bfox

Canadian Women's Labour-Force Participation
US.pop

Population of the United States
Burt

Fraudulent Data on IQs of Twins Raised Apart
Baumann

Methods of Teaching Reading Comprehension
DavisThin

Davis's Data on Drive for Thinness
Friendly

Format Effects on Recall
Chile

Voting Intentions in the 1988 Chilean Plebiscite
Anscombe

U. S. State Public-School Expenditures
Quartet

Four Regression Datasets
Ericksen

The 1980 U.S. Census Undercount
Adler

Experimenter Expectations
UN

GDP and Infant Mortality
Duncan

Duncan's Occupational Prestige Data
Davis

Self-Reports of Height and Weight
Chirot

The 1907 Romanian Peasant Rebellion
Mroz

U.S. Women's Labor-Force Participation
Sahlins

Agricultural Production in Mazulu Village
Mandel

Contrived Collinear Data
Guyer

Anonymity and Cooperation
Ginzberg

Data on Depression
Ornstein

Interlocking Directorates Among Major Canadian Firms
Womenlf

Canadian Women's Labour-Force Participation
Moore

Status, Authoritarianism, and Conformity
Vocab

Vocabulary and Education
Prestige

Prestige of Canadian Occupations
Angell

Moral Integration of American Cities