[amibroker] code need to be tweek

["goldwing01_1999" <goldwing01_1999@xxxxxxxxx>]

I found this code on the web somewhere, however I never used it but as I set here going through my email box I inserted this code into Amibroker.  Looked it over and it looks promising but it is not complete. If someone can figure out what's wrong with it I would appreciate it.


Period   = Param("Period", 10, 1, 100, 1);
VolRange = Param("Volatility Range", 2, 0, 5, 0.5);
Width    = VolRange *ATR(20)/C*100;

tr       = (Ref(HHV(H,Period),-1) < C*(1 + Width/100)) AND 
(Ref(LLV(L,Period),-1) > C*(1 - Width/100));
trPerc   = IIf((Ref(HHV(H,Period),-1) < C*(1 + Width/100)) AND 
(Ref(LLV(L,Period),-1) > C*(1 - Width/100)), (C - 
Ref(LLV(L,Period),-1))/(Ref(HHV(H,Period),-1) - Ref(LLV(L,Period),-1))*100, 0);

bkup     = IIf((Ref(tr,-1) == 1) AND (C > Ref(Ref(HHV(H,Period),-1),-1)), 100, 0);
bkdown   = IIf((Ref(tr,-1) == 1) AND (C < Ref(Ref(LLV(L,Period),-1),-1)), 100, 0);

GraphXSpace = 2;

Plot(trPerc, "TRADING RANGE ( " + WriteVal(Width, 1.0) + " % )", 10, 
styleHistogram | styleThick);
Plot(bkup, "  BKUP", colorGreen, styleHistogram | styleThick);
Plot(bkdown, "  BKDOWN", colorRed, styleHistogram | styleThick);
Plot(10, "", IIf(tr, colorLightOrange, colorWhite),styleOwnScale|styleArea|styleNoLabel, -1, 100 );



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