Learn R Programming

⚠️There's a newer version (3.1-3) of this package.Take me there.

car (version 3.1-2)

Companion to Applied Regression

Description

Functions to Accompany J. Fox and S. Weisberg, An R Companion to Applied Regression, Third Edition, Sage, 2019.

Copy Link

Version

Install

install.packages('car')

Monthly Downloads

596,351

Version

3.1-2

License

GPL (>= 2)

Maintainer

Last Published

March 30th, 2023

Functions in car (3.1-2)

Boxplot

Boxplots With Point Identification
Boot

Bootstrapping for regression models
ScatterplotSmoothers

Smoothers to Draw Lines on Scatterplots
Export

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

Model Predictions
Import

Import data from many file formats
Contrasts

Functions to Construct Contrasts
S

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

Anova Tables for Various Statistical Models
Ellipses

Ellipses, Data Ellipses, and Confidence Ellipses
car-deprecated

Deprecated Functions in the car Package
car-defunct

Defunct Functions in the car Package
bcPower

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

Axes for Transformed Variables
boxCox

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

Print Abbreviated Ouput
boxTidwell

Box-Tidwell Transformations
boxCoxVariable

Constructed Variable for Box-Cox Transformation
avPlots

Added-Variable Plots
Tapply

Apply a Function to a Variable Within Factor Levels
deltaMethod

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

Set or Retrieve car Package Color Palette
carHexsticker

View the Official Hex Sticker for the car Package
car-internal.Rd

Internal Objects for the car package
crPlots

Component+Residual (Partial Residual) Plots
densityPlot

Nonparametric Density Estimates
carWeb

Access to the R Companion to Applied Regression Website
dfbetaPlots

dfbeta and dfbetas Index Plots
compareCoefs

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

Ceres Plots
leveneTest

Levene's Test
leveragePlots

Regression Leverage Plots
invResPlot

Inverse Response Plots to Transform the Response
hccm

Heteroscedasticity-Corrected Covariance Matrices
influence.mixed.models

Influence Diagnostics for Mixed-Effects Models
hist.boot

Methods Functions to Support boot Objects
durbinWatsonTest

Durbin-Watson Test for Autocorrelated Errors
influencePlot

Regression Influence Plot
invTranPlot

Choose a Predictor Transformation Visually or Numerically
infIndexPlot

Influence Index Plot
logit

Logit Transformation
powerTransform

Finding Univariate or Multivariate Power Transformations
pointLabel

Label placement for points to avoid overlaps
panel.car

Panel Function for Coplots
mcPlots

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

Test Linear Hypothesis
mmps

Marginal Model Plotting
poTest

Test for Proportional Odds in the Proportional-Odds Logistic-Regression Model
outlierTest

Bonferroni Outlier Test
ncvTest

Score Test for Non-Constant Error Variance
scatter3d

Three-Dimensional Scatterplots and Point Identification
sigmaHat

Return the scale estimate for a regression model
scatterplotMatrix

Scatterplot Matrices
regLine

Plot Regression Line
residualPlots

Residual Plots for Linear and Generalized Linear Models
showLabels

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

Recode a Variable
some

Sample a Few Elements of an Object
qqPlot

Quantile-Comparison Plot
scatterplot

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

Position of Row Names
testTransform

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

Weighted Matrix Crossproduct
strings2factors

Convert Character-String Variables in a Data Frame to Factors
vif

Variance Inflation Factors
spreadLevelPlot

Spread-Level Plots
subsets

Plot Output from regsubsets Function in leaps package
symbox

Boxplots for transformations to symmetry