leaps: plot.regsubsets – R documentation

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

plot.regsubsets

Graphical table of best subsets

Description

Plots a table of models showing which variables are in each model. The models are ordered by the specified model selection statistic. This plot is particularly useful when there are more than ten or so models and the simple table produced by summary.regsubsets is too big to read.

Usage

## S3 method for class 'regsubsets'
plot(x, labels=obj$xnames, main=NULL, scale=c("bic", "Cp", "adjr2", "r2"),
col=gray(seq(0, 0.9, length = 10)),...)

Arguments

`x`	`regsubsets` object
`labels`	variable names
`main`	title for plot
`scale`	which summary statistic to use for ordering plots
`col`	Colors: the last color should be close to but distinct from white
`...`	other arguments

Value

None

Author(s)

Thomas Lumley, based on a concept by Merlise Clyde

Examples

data(swiss)
a<-regsubsets(Fertility~.,nbest=3,data=swiss)
par(mfrow=c(1,2))
plot(a)
plot(a,scale="r2")

leaps

Regression Subset Selection

v3.1

GPL (>= 2)

Authors

Thomas Lumley based on Fortran code by Alan Miller

Initial release