

   CCoommbbiinnee FFoorrmmuullaass ooff aa SSeett ooff OObbjjeeccttss

        asOneFormula(..., omit)

   AArrgguummeennttss::

        ...: objects, or lists of objects, from which a formula
             can be extracted.

       omit: an optional character vector with the names of
             variables to be omitted from the returned formula.
             Defaults to c(".", "pi").

   DDeessccrriippttiioonn::

        The names of all variables used in the formulas
        extracted from the objects defined in `...' are con-
        verted into a single linear formula, with the variables
        names separated by `+'.

   VVaalluuee::

        a one-sided linear formula with all variables named in
        the formulas extracted from the objects in `...',
        except the ones listed in `omit'.

   AAuutthhoorr((ss))::

        Jose Pinheiro and Douglas Bates

   SSeeee AAllssoo::

        `formula', `all.vars'

   EExxaammpplleess::

        library(lme)
        asOneFormula(y ~ x + z | g, list(~ w, ~ t * sin(2 * pi)))

