Extract Data Frame Covariate
DESCRIPTION:
The right hand side of
form, stripped of any conditioning
expression (i.e. an expression following a `|' operator), is
evaluated in
object.
USAGE:
getCovariate(object, form)
REQUIRED ARGUMENTS:
- object
-
an object inheriting from class
data.frame.
OPTIONAL ARGUMENTS:
- form
-
an optional formula specifying the covariate to be
evaluated in
object. Defaults to
formula(object).
VALUE:
the value of the right hand side of
form, stripped of
any conditional expression, evaluated in
object.
SEE ALSO:
EXAMPLES:
getCovariate(Orthodont)