# car v1.0-9

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## 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. Some of the functions in car will use functions
in the MASS package, if it is present; the subsets function graphs
objects produced by the regsubsets function in the leaps package. Where relevant, the functions in
car are consistent with na.action = na.omit or na.exclude.

## Functions in car

Name | Description | |

ncv.test | Score Test for Non-Constant Error Variance | |

Ask | Change Argument to a Function Interactively | |

ceres.plots | Ceres Plots | |

scatterplot.matrix | Scatterplot Matrices | |

Contrasts | Functions to Construct Contrasts | |

box.cox.powers | Multivariate Unconditional Box-Cox Transformations | |

Anova | Anova Tables for Linear and Generalized Linear Models | |

box.tidwell | Box-Tidwell Transformations | |

box.cox.var | Constructed Variable for Box-Cox Transformation | |

Transformation Axes | Axes for Transformed Variables | |

hccm | Heteroscedasticity-Corrected Covariance Matrices | |

cr.plots | Component+Residual (Partial Residual) Plots | |

leverage.plots | Regression Leverage Plots | |

recode | Recode a Variable | |

logit | Logit Transformation | |

which.names | Position of Row Names | |

Cook's Distances | Cook's Distances for Linear and Generalized Linear Models | |

box.cox | Box-Cox Family of Transformations | |

Ellipses | Ellipses, Data Ellipses, and Confidence Ellipses | |

reg.line | Plot Regression Line | |

scatterplot | Scatterplots with Boxplots | |

durbin.watson | Durbin-Watson Test for Autocorrelated Errors | |

outlier.test | Bonferroni Outlier Test | |

panel.car | Panel Function Coplots | |

linear.hypothesis | Test Linear Hypothesis | |

qq.plot | Quantile-Comparison Plots | |

Var | Variance-Covariance Matrices (deprecated) | |

subsets | Plot Output from regsubsets Function in leaps package | |

n.bins | Number of Bins for Histogram | |

car-internal | Internal car functions | |

av.plots | Added-Variable Plots | |

vif | Variance Inflation Factors | |

spread.level.plot | Spread-Level Plots | |

Prestige | Prestige of Canadian Occupations | |

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

Ericksen | The 1980 U.S. Census Undercount | |

Ornstein | Interlocking Directorates Among Major Canadian Firms | |

Mroz | U.S. Women's Labor-Force Participation | |

Can.pop | Canadian Population Data | |

Chirot | The 1907 Romanian Peasant Rebellion | |

Adler | Experimenter Expectations | |

Cowles | Cowles and Davis's Data on Volunteering | |

Blackmoor | Exercise Histories of Eating-Disordered and Control Subjects | |

Mandel | Contrived Collinear Data | |

SLID | Survey of Labour and Income Dynamics | |

Burt | Fraudulent Data on IQs of Twins Raised Apart | |

Migration | Canadian Interprovincial Migration Data | |

Duncan | Duncan's Occupational Prestige Data | |

Moore | Status, Authoritarianism, and Conformity | |

Greene | Refugee Appeals | |

Quartet | Four Regression Datasets | |

Davis | Self-Reports of Height and Weight | |

Hartnagel | Canadian Crime-Rates Time Series | |

Ginzberg | Data on Depression | |

Florida | Florida County Voting | |

Robey | Fertility and Contraception | |

Angell | Moral Integration of American Cities | |

Friendly | Format Effects on Recall | |

Freedman | Crowding and Crime in U. S. Metropolitan Areas | |

Guyer | Anonymity and Cooperation | |

Bfox | Canadian Women's Labour-Force Participation | |

Anscombe | U. S. State Public-School Expenditures | |

UN | GDP and Infant Mortality | |

DavisThin | Davis's Data on Drive for Thinness | |

Chile | Voting Intentions in the 1988 Chilean Plebiscite | |

Vocab | Vocabulary and Education | |

Womenlf | Canadian Women's Labour-Force Participation | |

Baumann | Methods of Teaching Reading Comprehension | |

Leinhardt | Data on Infant-Mortality | |

Sahlins | Agricultural Production in Mazulu Village | |

US.pop | Population of the United States | |

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## Last month downloads

## Details

Date | 2003/12/2 |

License | GPL version 2 or newer |

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

depends | base (>= 1.7.0) , modreg , R (>= 1.7.0) |

Contributors | John Fox, David Firth, Brian Ripley, Michael Friendly, Georges Monette, Sanford for various suggestions |

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