reshape (version 0.8.10)

all.vars.character: Get all variables

Description

All variables in character string of formula.

Usage

all.vars.character(formula, blank.char = ".")

Author

Hadley Wickham <[e-mail]>

Arguments

formula

blank.char

Details

Removes .

Examples

all.vars.character("a + b")
all.vars.character("a + b | c")
all.vars.character("a + b")
all.vars.character(". ~ a + b")
all.vars.character("a ~ b | c + d + e")