i'm looking to perform screens in different time periods for RSI. every software tool has RSI 14; however, i'm looking to do some testing for other lengths of time, and have a screen for that. ie. RSI(2)>75 or RSI(7)<25 i have tradestation, but can't find it intuitively there (i might have missed it). i know it is in realtick, but that's not a screening system. anyone have any suggestions / alternatives? thanks.