to.gadget.formulae.Rd
Turn R expression into GADGET formulae string
to.gadget.formulae(ex)
An unevaluated R expression or formulae, e.g. quote(2 + log(moo - 1)) or ~2 + log(moo - 1)
A character vector representing the GADGET formulae, e.g. "(+ 2 (log (- #moo 1)))"