[amibroker] help with afl problem

["Dheya1" <dheya1@xxxxxxxxx>]

 if you can help me please.  
 the problem with it ,the signal appear on the chart  but  not stable 
some times it goes and come back again and if it appears and I use 
scan function it also late more than before .         
 Also when I use (n last quotations =1 ) there is no result even 
there is many when I use the(  from to date ) and I tried it with 
other afl it's working.

Thanks
       
  
Chg=2
sup = Ref(Trough(L, Chg, 1), 1);
sup1 = Ref(sup,1);
pat = IIf(sup != sup1,1,0);
Plot(pat,"pat",5,1);
 
 
Buy=pat ;
 

 




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