Thank you Spunky,but I could not find the historical volatility and implied volatility for option in the AFL,Could you show me ?
You need to go to the AFL Library at http://amibroker.com/library/list.php then do a search for "historical volatility" and "implied volatility". Leave off the quotes.
I find 3 matches for historical volatility and 2 matches for implied volatility. Do you know how to do a search? Hint, use the box called search.