getData.gls               package:nlme               R Documentation

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 class 'gls':
     getData(object)

Arguments:

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

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.

Author(s):

     Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates
     bates@stat.wisc.edu

See Also:

     'gls'

Examples:

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

