

   asOneSidedFormula {nls}                      R Documentation

   CCoonnvveerrtt ttoo OOnnee--SSiiddeedd FFoorrmmuullaa

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

        Names, expressions, numeric values, and strings are
        converted to one-sided formulas. If `object' is a for-
        mula, it must be one-sided, in which case it is
        returned unaltered.

   UUssaaggee::

        asOneSidedFormula(object)

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

     object: a one-sided formula, an expression, a numeric
             value, or a character string.

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

        a one-sided formula representing `object'

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

        Jose Pinheiro and Douglas Bates

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

        `formula'

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

        library(nls)
        asOneSidedFormula("age")
        asOneSidedFormula(~ age)

