This base class represents expressions involving unary operators.
# S4 method for UnaryOperator
name(x)
# S4 method for UnaryOperator
to_numeric(object, values)A UnaryOperator object.
A list of arguments to the atom.
name(UnaryOperator): Returns the expression in string form.
to_numeric(UnaryOperator): Applies the unary operator to the value.
exprThe Expression that is being operated upon.
op_nameA character string indicating the unary operation.