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car (version 3.0-0)

Companion to Applied Regression

Description

Functions to Accompany J. Fox and S. Weisberg, An R Companion to Applied Regression, Third Edition, Sage, in press.

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Version

Install

install.packages('car')

Monthly Downloads

531,516

Version

3.0-0

License

GPL (>= 2)

Maintainer

John Fox

Last Published

April 2nd, 2018

Functions in car (3.0-0)

carWeb

Access to the R Companion to Applied Regression website
boxCox

Graph the profile log-likelihood for Box-Cox transformations in 1D, or in 2D with the bcnPower family.
Ellipses

Ellipses, Data Ellipses, and Confidence Ellipses
boxCoxVariable

Constructed Variable for Box-Cox Transformation
Predict

Model Predictions
Import

Import data from many file formats
leveragePlots

Regression Leverage Plots
ceresPlots

Ceres Plots
qqPlot

Quantile-Comparison Plot
recode

Recode a Variable
scatterplotMatrix

Scatterplot Matrices
linearHypothesis

Test Linear Hypothesis
compareCoefs

Print estimated coefficients and their standard errors in a table for several regression models.
showLabels

Functions to Identify and Mark Extreme Points in a 2D Plot.
Export

Export a data frame to disk in one of many formats
Tapply

Apply a Function to a Variable Within Factor Levels
crPlots

Component+Residual (Partial Residual) Plots
TransformationAxes

Axes for Transformed Variables
car-defunct

Defunct Functions in the car Package
car-deprecated

Deprecated Functions in the car Package
deltaMethod

Estimate and Standard Error of a Nonlinear Function of Estimated Regression Coefficients
dfbetaPlots

dfbeta and dfbetas Index Plots
infIndexPlot

Influence Index Plot
durbinWatsonTest

Durbin-Watson Test for Autocorrelated Errors
hccm

Heteroscedasticity-Corrected Covariance Matrices
invTranPlot

Choose a Predictor Transformation Visually or Numerically
leveneTest

Levene's Test
logit

Logit Transformation
influence.mixed.models

Influence Diagnostics for Mixed-Effects Models
densityPlot

Nonparametric Density Estimates
hist.boot

Methods Functions to Support boot Objects
mmps

Marginal Model Plotting
influencePlot

Regression Influence Plot
mcPlots

Draw Linear Model Marginal and Conditional Plots in Parallel or Overlaid
regLine

Plot Regression Line
outlierTest

Bonferroni Outlier Test
residualPlots

Residual Plots for Linear and Generalized Linear Models
invResPlot

Inverse Response Plots to Transform the Response
vif

Variance Inflation Factors
poTest

Test for Proportional Odds in the Proportional-Odds Logistic-Regression Model
panel.car

Panel Function for Coplots
powerTransform

Finding Univariate or Multivariate Power Transformations
ncvTest

Score Test for Non-Constant Error Variance
sigmaHat

Return the scale estimate for a regression model
wcrossprod

Weighted Matrix Crossproduct
scatter3d

Three-Dimensional Scatterplots and Point Identification
spreadLevelPlot

Spread-Level Plots
symbox

Boxplots for transformations to symmetry
some

Sample a Few Elements of an Object
subsets

Plot Output from regsubsets Function in leaps package
testTransform

Likelihood-Ratio Tests for Univariate or Multivariate Power Transformations to Normality
scatterplot

Enhanced Scatterplots with Marginal Boxplots, Point Marking, Smoothers, and More
whichNames

Position of Row Names
Boxplot

Boxplots With Point Identification
Contrasts

Functions to Construct Contrasts
Boot

Bootstrapping for regression models
ScatterplotSmoothers

Smoothers to Draw Lines on Scatterplots
S

Modified Functions for Summarizing Linear, Generalized Linear, and Some Other Models
Anova

Anova Tables for Various Statistical Models
boxTidwell

Box-Tidwell Transformations
bcPower

Box-Cox, Box-Cox with Negatives Allowed, Yeo-Johnson and Basic Power Transformations
avPlots

Added-Variable Plots
brief

Print Abbreviated Ouput
carPalette

Set or Retrieve car Package Color Palette
car-internal.Rd

Internal Objects for the car package