Hi Statalist,

Random question: why isn't there an if and only if operator in STATA? I very often want: "assert A iff B". I end up writing: "assert (A & B) | (!A & !B)"

This gets cumbersome when A and B are large. Since other people need to read/understand my do files, it would be nice for the intelligibility of my asserts if I could just write iff as well.

Is there a reason this operator cannot be included as part of the standard set?

Thanks,

Julian