[amibroker] How to keep buying in an uptrend?

["Andre" <SGSTAndre@xxxxxxx>]

This sounds so basic, yet, I can't figure out how to do it:

I want to keep buying when today's price crosses yesterday's high plus 
a "fudge factor", Alpha:

  BuyPrice = Ref(High,-1)+ Alpha ;
  Buy = Cross(High, BuyPrice) ;

This works on the FIRST day after a downtrend, as today's high crosses 
yesterday's high, but it does not work on the following day, as the 
uptrend continues, as at that point we stay "above" the crossing point.
How do I create a construction that keeps buying every day of an 
uptrend at yesterday's high?

Thx,

Andre




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