# car v1.2-2

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Monthly downloads

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 | |

Transformation Axes | Axes for Transformed Variables | |

OBrienKaiser | O'Brien and Kaiser's Repeated-Measures Data | |

reg.line | Plot Regression Line | |

Ask | Change Argument to a Function Interactively | |

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

car-package | Companion to Applied Regression | |

qq.plot | Quantile-Comparison Plots | |

Contrasts | Functions to Construct Contrasts | |

logit | Logit Transformation | |

box.tidwell | Box-Tidwell Transformations | |

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

ceres.plots | Ceres Plots | |

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

vif | Variance Inflation Factors | |

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

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

outlier.test | Bonferroni Outlier Test | |

av.plots | Added-Variable Plots | |

some | Sample a Few Elements of an Object | |

Soils | Soil Compositions of Physical and Chemical Characteristics | |

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

Var | Variance-Covariance Matrices (deprecated) | |

scatterplot.matrix | Scatterplot Matrices | |

recode | Recode a Variable | |

car-internal | Internal car functions | |

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

n.bins | Number of Bins for Histogram | |

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

linear.hypothesis | Test Linear Hypothesis | |

Pottery | Chemical Composition of Pottery | |

symbox | Boxplots for transformations to symmetry | |

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

influencPlot | Regression Influence Plot | |

which.names | Position of Row Names | |

levene.test | Levene's Test | |

Anova | Anova Tables for Various Statistical Models | |

hccm | Heteroscedasticity-Corrected Covariance Matrices | |

leverage.plots | Regression Leverage Plots | |

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

scatterplot | Scatterplots with Boxplots | |

panel.car | Panel Function Coplots | |

Davis | Self-Reports of Height and Weight | |

Hartnagel | Canadian Crime-Rates Time Series | |

Moore | Status, Authoritarianism, and Conformity | |

Can.pop | Canadian Population Data | |

UN | GDP and Infant Mortality | |

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

Chile | Voting Intentions in the 1988 Chilean Plebiscite | |

Duncan | Duncan's Occupational Prestige Data | |

Guyer | Anonymity and Cooperation | |

Prestige | Prestige of Canadian Occupations | |

Quartet | Four Regression Datasets | |

Mandel | Contrived Collinear Data | |

Adler | Experimenter Expectations | |

Florida | Florida County Voting | |

Vocab | Vocabulary and Education | |

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

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

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

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

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

Chirot | The 1907 Romanian Peasant Rebellion | |

Angell | Moral Integration of American Cities | |

Baumann | Methods of Teaching Reading Comprehension | |

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

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

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

Ginzberg | Data on Depression | |

Sahlins | Agricultural Production in Mazulu Village | |

Greene | Refugee Appeals | |

Friendly | Format Effects on Recall | |

US.pop | Population of the United States | |

SLID | Survey of Labour and Income Dynamics | |

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

Ornstein | Interlocking Directorates Among Major Canadian Firms | |

Leinhardt | Data on Infant-Mortality | |

Migration | Canadian Interprovincial Migration Data | |

Robey | Fertility and Contraception | |

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

No Results! |

## Last month downloads

## Details

Date | 2007/8/19 |

LazyLoad | yes |

LazyData | yes |

License | GPL version 2 or newer |

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

Packaged | Fri Aug 24 19:51:50 2007; John Fox |

depends | base (>= 2.1.1) , graphics , R (>= 2.1.1) , stats |

suggests | leaps , MASS , nnet |

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

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