Fast Stochastic Or RSI

[Barry Kaufman <102577.325@xxxxxxxxxxxxxx>]

In order to speed up TS optimization, I want to reduce the look-back 
FOR - END looping overhead of the Stochastic and RSI on each bar.  We 
know that this can be done with a simple MA by replacing FOR - END
lookback, with adding the new bar and subtracting the oldest bar and 
dividing by N.  Is there a similar trick for Stochastic and RSI?  If 
so, please show a snippet of code to point me in the right direction.

Thanks, Barry.