netarchitech
Well-known member
Another TradingView port...Looking forward to thoughts, feedback, backtests, etc...
Here's some additional information regarding the Universal Oscillator, courtesy of LazyBear:
Code:
# filename: _Universal_Oscillator_LB_
# source: https://www.tradingview.com/script/ieFYbVdC-Ehlers-Universal-Oscillator-LazyBear/
# Original idea and execution:
# Ehlers Universal Oscillator
# Code by LazyBear
# initial port by netarchitech
# 2019.11.05
declare lower;
input bandedge = 20;
input showHistogram = yes;
input showMA = no;
input lengthMA = 9;
input PaintBars = yes;
input price = close;
def whitenoise = (close - close[2])/2;
def a1 = expaverage(-1.414 * 3.14159 / bandedge);
def b1 = 2.0 * a1 * cos(1.414 * 180 /bandedge);
def c2 = b1;
def c3 = -a1 * a1;
def c1 = 1 - c2 - c3;
def filt = c1 * (whitenoise + (whitenoise[1]))/2 + c2 * (filt[1]) + c3 * (filt[2]);
def filt1 = if totalsum(1) == 0 then 0 else if totalsum(1) == 2 then c2 * filt1[1] else if totalsum(1) == 3 then c2 * filt1[1] + c3 * (filt1[2]) else filt;
def pk = if totalsum(1) == 2 then .0000001 else if absvalue(filt1) > pk[1] then absvalue(filt1) else 0.991 * pk[1];
def denom = if pk==0 then -1 else pk;
def euo = if denom == -1 then euo[1] else filt1/pk;
def euoMA = expaverage(euo, lengthMA);
plot zeroLine = 0;
plot diff = if showHistogram then euo else double.nan;
diff.SetPaintingStrategy(PaintingStrategy.HISTOGRAM);
diff.SetLineWeight(5);
diff.DefineColor("Positive and Up", Color.UPTICK);
diff.DefineColor("Positive and Down", Color.UPTICK);
diff.DefineColor("Negative and Down", Color.DOWNTICK);
diff.DefineColor("Negative and Up", Color.DOWNTICK);
diff.AssignValueColor(if diff >= 0 then if diff > diff[1] then diff.color("Positive and Up") else diff.color("Positive and Down") else if diff < diff[1] then diff.color("Negative and Down") else diff.color("Negative and Up"));
plot ehlers_universal_oscillator = euo;
ehlers_universal_oscillator.hide();
plot showMovAvg = if showMA then euoMA else double.nan;
AssignPriceColor(if PaintBars then (if euo >= 0 then Color.UPTICK else Color.DOWNTICK) else Color.CURRENT);Good Luck and Good Trading
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