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January 2015: Whiter is Brighter (Universal Oscillator)
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John F. Ehlers' article, “Whiter is Brighter”, introduced his Universal Oscillator. The MetaStock code for this indicator is listed below: Universal Oscillator: Code:bandedge:= 20;
whitenoise:= (C - Ref(C,-2))/2;
{super smoother filter}
a1:= Exp(-1.414 * 3.14159 / bandedge);
b1:= 2*a1 * Cos(1.414*180 /bandedge);
c2:= b1;
c3:= -a1 * a1;
c1:= 1 - c2 - c3;
filt:= c1 * (whitenoise + Ref(whitenoise, -1))/2 + c2*PREV + c3*Ref(PREV,-1);
filt1:= If(Cum(1) = 0, 0, If(Cum(1) = 2, c2*PREV,
If(Cum(1) = 3, c2*PREV + c3*Ref(PREV,-1), filt)));
pk:= If(Cum(1) = 2, .0000001,
If(Abs(filt1) > PREV, Abs(filt1), 0.991 * PREV));
denom:= If(pk=0, -1, pk);
If(denom = -1, PREV, filt1/pk)
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January 2015: Whiter is Brighter (Universal Oscillator)
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