nlme (version 3.1-163)

getData.gls: Extract gls Object Data

Description

If present in the calling sequence used to produce object, the data frame used to fit the model is obtained.

Usage

# S3 method for gls
getData(object)

Value

if a data argument is present in the calling sequence that produced object, the corresponding data frame (with

na.action and subset applied to it, if also present in the call that produced object) is returned; else, NULL is returned.

Arguments

object

an object inheriting from class gls, representing a generalized least squares fitted linear model.

Author

José Pinheiro and Douglas Bates

See Also

gls, getData

Examples

fm1 <- gls(follicles ~ sin(2*pi*Time) + cos(2*pi*Time), data = Ovary,
           correlation = corAR1(form = ~ 1 | Mare))
getData(fm1)