Get all variables
All variables in character string of formula.
all.vars.character(formula, blank.char = ".")
formula |
|
blank.char |
Removes .
Hadley Wickham <h.wickham@gmail.com>
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")
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.