# car v0.8-4

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## Companion to Applied Regression

This package contains mostly functions for applied regession, 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 plot.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 | |

which.names | Position of Row Names | |

av.plots | Added-Variable Plots | |

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

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

outlier.test | Bonferroni Outlier Test | |

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

qq.plot | Quantile-Comparison Plots | |

logit | Logit Transformation | |

car-internal | Internal car functions | |

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

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

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

scatterplot | Scatterplots with Boxplots | |

n.bins | Number of Bins for Histogram | |

reg.line | Plot Regression Line | |

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

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

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

linear.hypothesis | Test Linear Hypothesis | |

box.tidwell | Box-Tidwell Transformations | |

Ask | Change Argument to a Function Interactively | |

hccm | Heteroscedasticity-Corrected Covariance Matrices | |

ceres.plots | Ceres Plots | |

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

Transformation Axes | Axes for Transformed Variables | |

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

Var | Variance-Covariance Matrices | |

recode | Recode a Variable | |

vif | Variance Inflation Factors | |

scatterplot.matrix | Scatterplot Matrices | |

panel.car | Panel Function Coplots | |

leverage.plots | Regression Leverage Plots | |

Florida | Florida County Voting | |

Baumann | Methods of Teaching Reading Comprehension | |

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

Vocab | Vocabulary and Education | |

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

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

Robey | Fertility and Contraception | |

Greene | Refugee Appeals | |

Ginzberg | Data on Depression | |

Hartnagel | Canadian Crime-Rates Time Series | |

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

Angell | Moral Integration of American Cities | |

Moore | Status, Authoritarianism, and Conformity | |

Mandel | Contrived Collinear Data | |

Can.pop | Canadian Population Data | |

Prestige | Prestige of Canadian Occupations | |

Guyer | Anonymity and Cooperation | |

Quartet | Four Regression Datasets | |

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

Leinhardt | Data on Infant-Mortality | |

Davis | Self-Reports of Height and Weight | |

Chirot | The 1907 Romanian Peasant Rebellion | |

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

Adler | Experimenter Expectations | |

SLID | Survey of Labour and Income Dynamics | |

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

Friendly | Format Effects on Recall | |

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

Duncan | Duncan's Occupational Prestige Data | |

Migration | Canadian Interprovincial Migration Data | |

US.pop | Population of the United States | |

Ornstein | Interlocking Directorates Among Major Canadian Firms | |

UN | GDP and Infant Mortality | |

Chile | Voting Intentions in the 1988 Chilean Plebiscite | |

Sahlins | Agricultural Production in Mazulu Village | |

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## Last month downloads

## Details

Date | 2001/8/4 |

License | GPL version 2 or newer |

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

depends | base (>= 1.3.0) , modreg , R (>= 1.3.0) |

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

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