[amibroker] please chek this simple afl i m getting no results

["mahest72" <mahest72@xxxxxxxxx>]

hello,
i m new to afl hence trying with simple things

Buy=Close > HHV(Close,1);
Sell=Close < HHV(Close,1);
AddColumn( Close, "Close", 1.

here buy is todays close(realtime) is greater than yesterday's HHV 
(daily)
and sell is todays close ( realtime) is lower than LLV of yesterdays 
(daily)

when i sacn i get no error but no signal is generated. 
i changed in settings periodicity to daily as well as 10mnt. in both 
case i get no results.

also will be thankfull if some one can help to scan few candlestix 
patteren ( not all) like bullish/bearish engulfing or doji.

there is afl which scan 40 patterns, but how to add other conditions 
like macd or rsi to that afl 

regards
mahesh


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