# car v1.0-1

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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 | |

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

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

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

reg.line | Plot Regression Line | |

Deletion Diagnostics | Deletion Diagnostics for Linear and Generalized Linear Models | |

Contrasts | Functions to Construct Contrasts | |

scatterplot.matrix | Scatterplot Matrices | |

linear.hypothesis | Test Linear Hypothesis | |

Transformation Axes | Axes for Transformed Variables | |

panel.car | Panel Function Coplots | |

car-internal | Internal car functions | |

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

effect | Functions For Constructing Effect Plots | |

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

Ask | Change Argument to a Function Interactively | |

ceres.plots | Ceres Plots | |

logit | Logit Transformation | |

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

vif | Variance Inflation Factors | |

outlier.test | Bonferroni Outlier Test | |

levene.test | Levene's Test | |

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

av.plots | Added-Variable Plots | |

which.names | Position of Row Names | |

Var | Variance-Covariance Matrices (deprecated) | |

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

some | Sample a Few Elements of an Object | |

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

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

influence.plot | Regression Influence Plot | |

box.tidwell | Box-Tidwell Transformations | |

scatterplot | Scatterplots with Boxplots | |

hccm | Heteroscedasticity-Corrected Covariance Matrices | |

leverage.plots | Regression Leverage Plots | |

n.bins | Number of Bins for Histogram | |

recode | Recode a Variable | |

qq.plot | Quantile-Comparison Plots | |

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

symbox | Boxplots for transformations to symmetry | |

Chirot | The 1907 Romanian Peasant Rebellion | |

Hartnagel | Canadian Crime-Rates Time Series | |

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

Ginzberg | Data on Depression | |

Mandel | Contrived Collinear Data | |

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

Duncan | Duncan's Occupational Prestige Data | |

SLID | Survey of Labour and Income Dynamics | |

Baumann | Methods of Teaching Reading Comprehension | |

Florida | Florida County Voting | |

Adler | Experimenter Expectations | |

Guyer | Anonymity and Cooperation | |

Robey | Fertility and Contraception | |

Leinhardt | Data on Infant-Mortality | |

Davis | Self-Reports of Height and Weight | |

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

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

Greene | Refugee Appeals | |

Sahlins | Agricultural Production in Mazulu Village | |

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

Vocab | Vocabulary and Education | |

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

Friendly | Format Effects on Recall | |

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

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

Prestige | Prestige of Canadian Occupations | |

Can.pop | Canadian Population Data | |

Angell | Moral Integration of American Cities | |

Quartet | Four Regression Datasets | |

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

Chile | Voting Intentions in the 1988 Chilean Plebiscite | |

Migration | Canadian Interprovincial Migration Data | |

Ornstein | Interlocking Directorates Among Major Canadian Firms | |

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

US.pop | Population of the United States | |

UN | GDP and Infant Mortality | |

Moore | Status, Authoritarianism, and Conformity | |

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

No Results! |

## Last month downloads

## Details

Date | 2002/9/17 |

License | GPL version 2 or newer |

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

depends | base (>= 1.6.0) , grid , lattice , modreg , R (>= 1.6.0) |

Contributors | John Fox, Brian Ripley, Georges Monette, Sanford for various suggestions |

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