Case and Variable Names of Fitted Models (original) (raw)

case+variable.names {stats} R Documentation

Description

Simple utilities returning (non-missing) case names, and (non-eliminated) variable names.

Usage

case.names(object, ...)
## S3 method for class 'lm'
case.names(object, full = FALSE, ...)

variable.names(object, ...)
## S3 method for class 'lm'
variable.names(object, full = FALSE, ...)

Arguments

object an R object, typically a fitted model.
full logical; if TRUE, all names (including zero weights, ...) are returned.
... further arguments passed to or from other methods.

Value

A character vector.

See Also

[lm](../../stats/help/lm.html); further, [all.names](../../base/html/allnames.html),[all.vars](../../base/html/allnames.html) for functions with a similar name but only slightly related purpose.

Examples

x <- 1:20
y <-  setNames(x + (x/4 - 2)^3 + rnorm(20, sd = 3),
               paste("O", x, sep = "."))
ww <- rep(1, 20); ww[13] <- 0
summary(lmxy <- lm(y ~ x + I(x^2)+I(x^3) + I((x-10)^2), weights = ww),
        correlation = TRUE)
variable.names(lmxy)
variable.names(lmxy, full = TRUE)  # includes the last
case.names(lmxy)
case.names(lmxy, full = TRUE)      # includes the 0-weight case

[Package _stats_ version 4.6.0 Index]