[amibroker] Newbie here at backtesting buys under the sells not needed.

["kandrstocks" <kandrstocks@xxxxxxxxx>]

I have probably a very easy problem here. I have a couple lines of 
code for a very simple backtest. I am just starting out in the AFL 
language and I do know if I asked tech support that they would come 
to my rescue (Thomasz is Great) but I would rather get aquainted with 
this board and hopefully help out someday. Anyway here is my code.

Buy = Cross( EMA( Close, 5), EMA( Close, 13 ) );
Sell = Cross( EMA( Close, 200 ), Close );

As you can see I want to buy when the EMA 5 crosses the EMA 13 and 
sell when the close crosses the EMA 200. The problem I have is the 
fact that after the close crosses the EMA 200 of course it still has 
the buys when the EMA 5 crosses the EMA 13, but since it is already 
below my sell point I certainly don't want to buy again.

Basically I am looking for if below the EMA 200 no buy is generated. 

Thanks








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