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car (version 1.0-18)

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

395,928

Version

1.0-18

License

GPL version 2 or newer

Maintainer

John Fox

Last Published

September 27th, 2024

Functions in car (1.0-18)

Anova

Anova Tables for Linear and Generalized Linear Models
box.tidwell

Box-Tidwell Transformations
logit

Logit Transformation
spread.level.plot

Spread-Level Plots
Transformation Axes

Axes for Transformed Variables
Cook's Distances

Cook's Distances for Linear and Generalized Linear Models
scatterplot.matrix

Scatterplot Matrices
scatterplot

Scatterplots with Boxplots
reg.line

Plot Regression Line
panel.car

Panel Function Coplots
some

Sample a Few Elements of an Object
vif

Variance Inflation Factors
Contrasts

Functions to Construct Contrasts
qq.plot

Quantile-Comparison Plots
hccm

Heteroscedasticity-Corrected Covariance Matrices
outlier.test

Bonferroni Outlier Test
symbox

Boxplots for transformations to symmetry
box.cox

Box-Cox Family of Transformations
durbin.watson

Durbin-Watson Test for Autocorrelated Errors
box.cox.powers

Multivariate Unconditional Box-Cox Transformations
car-internal

Internal car functions
influence.plot

Regression Influence Plot
ncv.test

Score Test for Non-Constant Error Variance
subsets

Plot Output from regsubsets Function in leaps package
Var

Variance-Covariance Matrices (deprecated)
n.bins

Number of Bins for Histogram
Ellipses

Ellipses, Data Ellipses, and Confidence Ellipses
Ask

Change Argument to a Function Interactively
av.plots

Added-Variable Plots
cr.plots

Component+Residual (Partial Residual) Plots
ceres.plots

Ceres Plots
leverage.plots

Regression Leverage Plots
recode

Recode a Variable
box.cox.var

Constructed Variable for Box-Cox Transformation
levene.test

Levene's Test
linear.hypothesis

Test Linear Hypothesis
which.names

Position of Row Names
Anscombe

U. S. State Public-School Expenditures
Mroz

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

The 1980 U.S. Census Undercount
Angell

Moral Integration of American Cities
Ginzberg

Data on Depression
Baumann

Methods of Teaching Reading Comprehension
Chirot

The 1907 Romanian Peasant Rebellion
US.pop

Population of the United States
Robey

Fertility and Contraception
Adler

Experimenter Expectations
Mandel

Contrived Collinear Data
Moore

Status, Authoritarianism, and Conformity
UN

GDP and Infant Mortality
Florida

Florida County Voting
Vocab

Vocabulary and Education
Chile

Voting Intentions in the 1988 Chilean Plebiscite
Can.pop

Canadian Population Data
Leinhardt

Data on Infant-Mortality
SLID

Survey of Labour and Income Dynamics
Davis

Self-Reports of Height and Weight
Greene

Refugee Appeals
Migration

Canadian Interprovincial Migration Data
Sahlins

Agricultural Production in Mazulu Village
States

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

Canadian Crime-Rates Time Series
Burt

Fraudulent Data on IQs of Twins Raised Apart
Womenlf

Canadian Women's Labour-Force Participation
Bfox

Canadian Women's Labour-Force Participation
Freedman

Crowding and Crime in U. S. Metropolitan Areas
Ornstein

Interlocking Directorates Among Major Canadian Firms
Quartet

Four Regression Datasets
Duncan

Duncan's Occupational Prestige Data
Prestige

Prestige of Canadian Occupations
Friendly

Format Effects on Recall
Guyer

Anonymity and Cooperation
Blackmoor

Exercise Histories of Eating-Disordered and Control Subjects
Cowles

Cowles and Davis's Data on Volunteering
DavisThin

Davis's Data on Drive for Thinness