RObject ~ RObject -- create a two-sided R formula

• Operator: ~

• Usage:

  y ~ x

• Inputs:
  • y, a R object,
  • x, a R object,
• Outputs:
  • a R object, a two-sided formula y ~ x;

i1 : RQuote mpg ~ RQuote wt

o1 = .Primitive("~")(mpg, wt)

o1 : RObject of type language