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try something like this
per = optimize("closes", 3, 1, 10, 1 );
Buy = sum( C > Ref(C, -1) , per )==per;
--
Cheers
Graham
AB-Write >< Professional AFL Writing Service
Yes, I write AFL code to your requirements
http://e-wire.net.au/~eb_kavan/ab_write.htm
On 2/20/06, Keith Osborne <kosborn3@xxxxxxxxxxxxxx> wrote:
> Hi, the following gives me a buy condition if there are 3 successive
> higher highs.
>
> Buy = C > Ref(C, -1) AND Ref(C, -1) > Ref(C, -2) AND Ref(C, -2) >
> Ref(C, -3); /* 3 increased closes in a row */
>
> What I would like to do is optimize or param this so that I can backtest
> over a shorter/longer lookback, say 2 to 6 periods. How can I do this
> other than by a long string of Ref(c, -X) type conditions. Do I have to
> enter the world of loops (something I can't do).
>
> TIA.........Keith
>
>
>
>
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