Ehlers Detrended Leading Indicator

AlgoAlex · 2019-05-04T10:06:07+00:00

The Detrended Ehlers Leading Indicator(DELI) was authored by Jon Ehlers (See “MESA and Trading Market Cycles” by John Ehlers). Detrended Synthetic Price is a function that is in phase with the dominant cycle of real price data. This one is computed by subtracting a 3 pole Butterworth filter from a 2 Pole Butterworth filter. Ehlers Leading Indicator gives an advanced indication of a cyclic turning point. It is computed by subtracting the simple moving average of the detrended synthetic price from the detrended synthetic price. I translated the code found here: https://www.motivewave.com/studies/detrended_ehlers_leading_indicator.htm //Detrended Ehlers Leading Indicator //by AlexF //period=14 if high>high[1] then prevhigh=high endif if low 2 then alpha=2/(period+1) else alpha=.67 endif alpha2=alpha/2 ema1=(alpha*price)+((1-alpha)*Ema1) ema2=((alpha2)*price)+((1-alpha2)*Ema2) dsp=ema1-ema2 temp=(alpha*dsp)+((1-alpha)*temp) deli=dsp-temp return deli as "DELI", 0 as "ZERO"

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05/04/2019 at 11:06 AM #97658 quote
AlgoAlex
Participant

Master
The Detrended Ehlers Leading Indicator(DELI) was authored by Jon Ehlers (See “MESA and Trading Market Cycles” by John Ehlers).

Detrended Synthetic Price is a function that is in phase with the dominant cycle of real price data. This one is computed by subtracting a 3 pole Butterworth filter from a 2 Pole Butterworth filter. Ehlers Leading Indicator gives an advanced indication of a cyclic turning point. It is computed by subtracting the simple moving average of the detrended synthetic price from the detrended synthetic price.

I translated the code found here: https://www.motivewave.com/studies/detrended_ehlers_leading_indicator.htm
```
//Detrended Ehlers Leading Indicator
//by AlexF


//period=14
if high>high[1] then
prevhigh=high
endif
if low<low[1] then
prevlow=low
endif
price=(prevhigh+prevlow)/2

if barindex>2 then
alpha=2/(period+1)
else
alpha=.67
endif
alpha2=alpha/2

ema1=(alpha*price)+((1-alpha)*Ema1)
ema2=((alpha2)*price)+((1-alpha2)*Ema2)
dsp=ema1-ema2  
temp=(alpha*dsp)+((1-alpha)*temp) 
deli=dsp-temp  



return deli as "DELI",  0 as "ZERO"
```
Nicolas thanked this post

DELI.itf deli.jpg
05/09/2019 at 3:54 PM #98094 quote

Nicolas
Keymaster

Legend

Great work, you should submit it to the library! Submit code to the library

05/09/2019 at 4:18 PM #98098 quote

AlgoAlex
Participant

Master

Nicolas,

I already submitted it!

It’s still in pending approval.

05/09/2019 at 4:38 PM #98099 quote

Nicolas
Keymaster

Legend

oh sorry, I’m back from leave and did not check that yet. Will do asap. Thank you!
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