EdgeTalk

Posted: **Mon Apr 09, 2012 4:57 pm**

I have a script in another language for the Ultimate Oscillator, how can I convert it to Chart Script? Here's the script:

Code: Select all

input fastLength = 7;
input medLength = 14;
input slowLength = 28;

def trRng = TrueRange(high, close, low);

def trRngFast = sum(trRng, fastLength);
def trRngMed = sum(trRng, medLength);
def trRngSlow = sum(trRng, slowLength);

def diff = close - Min(close[1], low);

def diffFast = sum(diff, fastLength);
def diffMed = sum(diff, medLength);
def diffSlow = sum(diff, slowLength);

def factorFast = slowLength / fastLength;
def factorMed = slowLength / medLength;

def valFast = (diffFast / trRngFast) * factorFast;
def valMed = (diffMed / trRngMed) * factorMed;
def valSlow = (diffSlow / trRngSlow);

plot UltOsc = if trRngFast == 0 or trRngMed == 0 or trRngSlow == 0 then 0 
else (valFast + valMed + valSlow) / (factorFast + factorMed + 1);
UltOsc.SetDefaultColor(GetColor(1));

Posted: **Mon Apr 09, 2012 5:04 pm**

There is already an indicator in EdgeRater for the Ultimate Oscillator, it is called 'ULT', and here's the script:

Code: Select all

LC :=REF(C,1);
TL :=MIN(L,LC);
BP :=C-TL;
TR := MAX(H-L,ABS(LC-H),ABS(LC-L));
BPSum1 := MA(BP,N1);
BPSum2 := MA(BP,N2);
BPSum3 := MA(BP,N3);
TRSum1 := MA(TR,N1);
TRSum2 := MA(TR,N2);
TRSum3 := MA(TR,N3);
RawUO :=4*(BPSum1/TRSum1)+2*(BPSum2/TRSum2)+(BPSum3/TRSum3);
(RawUO/(4+2+1))*100,Width2,HighQuality;

This is calculated in a slightly different way to the code you provided but does the same thing. One difference is that it is scaled from 0 to 100 instead of from 0 to 1.

As an example of how to convert the code you provided I have done so and come up with the following script:

Code: Select all

LC:= REF(C,1);
TR:= MAX(LC, H) - MIN(LC, L);

TR1:= SUM(TR, N1);
TR2:= SUM(TR, N2);
TR3:= SUM(TR, N3);

DIFF:= C - MIN(LC, L);

DIFF1:= SUM(DIFF, N1);
DIFF2:= SUM(DIFF, N2);
DIFF3:= SUM(DIFF, N3);

FACTOR1:= N3 / N1;
FACTOR2:= N3 / N2;

VAL1:= (DIFF1 / TR1) * FACTOR1;
VAL2:= (DIFF2 / TR2) * FACTOR2;
VAL3:= DIFF3 / TR3;

Cond1:= TR1 == 0 | TR2 == 0 | TR3 == 0;
ULTOSC: IF(Cond1, 0, (VAL1 + VAL2 + VAL3) / (FACTOR1 + FACTOR2 + 1));

Here's a chart with both the original script indicator 'ULT' and the new script indicator 'ULT2' plotted in a sub area:

: The original Ultimate oscillator (ULT) plotted above the script conversion for the Ultimate Oscillator (ULT2); ultimateoscillator.png (26.43 KiB) Viewed 20489 times

Posted: **Mon Apr 09, 2012 8:03 pm**

Damn, you're good! Thanks!!

EdgeTalk

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