R: Case and Variable Names of Fitted Models

case/variable.names {base} | R Documentation

## Case and Variable Names of Fitted Models

### Description

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

### Usage

    case.names(object, ...)
    case.names.lm(object, full = FALSE, ...)

    variable.names(object, ...)
    variable.names.lm(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`

### Examples

    x <- 1:20
    y <-  x + (x/4 - 2)^3 + rnorm(20, s=3)
    names(y) <- 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), cor = 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

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