Reqired afl for % change in stock

Hi all.
i want an afl which calculate close percentage change in stock (like +-3%.+-4% and so on) and i should be able to scan how many stocks moved +-n number of % in last 10,20 260etcdays.
Thanks in advance

Hi Reenu,

You can use the ROC function. Percent Change in Close = ROC(Close, N) where N is number of days over whivh you want the change. N=1 gives change with respect to yesterday's close.

Regards

-Anant

thnx ,
but when if we choose parameter N=1, does it mean % Change in
a. Volume(close) or
b. Price(Price)
at close?

can some one post the afl for the same?

Please read the manual or http://www.amibroker.com/guide/afl/afl_view.php?id=126 - this should make it absolutely clear.

anybody have an AFL for 30 min strategy.ie.to Calculate day's high and low at 10.30. if above high go long and below low go short.First target will be 50% high-low difference and second target will be 100% of the high - low difference. And stoploss if long day's low,if short day's high.
any afl experts help me.I tried manually in many stocks with high volume trading stocks it is working.
siva2005