getCovariate.data.frame
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
## S3 method for class 'data.frame' getCovariate(object, form, data)
Arguments
object | an object inheriting from class |
form | an optional formula specifying the covariate to be evaluated in |
data | some methods for this generic require a separate data frame. Not used in this method. |
Value
the value of the right hand side of form
, stripped of any conditional expression, evaluated in object
.
Author(s)
José Pinheiro and Douglas Bates [email protected]
See Also
Examples
getCovariate(Orthodont)
Copyright (©) 1999–2012 R Foundation for Statistical Computing.
Licensed under the GNU General Public License.