# car v1.0-17

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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 | |

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 | |

No Results! |

## Last month downloads

## Details

Date | 2005/4/16 |

License | GPL version 2 or newer |

URL | http://www.r-project.org, http://socserv.socsci.mcmaster.ca/jfox/ |

Packaged | Sat Apr 16 09:11:58 2005; John Fox |

depends | base (>= 1.9.0) , R (>= 1.9.0) |

suggests | leaps , MASS , nnet |

Contributors | John Fox, David Firth, Brian Ripley, Michael Friendly, Gregor Gorjanc, Georges Monette, Henric Nilsson, Achim for various suggestions, Sanford Weisberg |

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