I am new to Amibroker. I have been using esignal and tradestation for a few yrs, and by the way amibroker is very impressive in so many ways.
Anyway very basic question. When declaring a user function, how do i declare a parameter as optional, eg some languages will allow something like function aaa(optional int X). So in AFL, how do i declare it as optional, and how do i set the default value? Sorry i know i must have overlooked it somewhere in the user guide.
