LazyBear

Ehlers Adaptive Cyber Cycle Indicator [LazyBear]

Another famous Ehlers indicator.

This is the adaptive version of Ehlers' Cyber Cycle ( CC ) (already published, check "More info" below). Idea behind making something "adaptive" is to calculate it using dynamic cycle period inputs instead of static setting. In adaptive cyber cycle, Ehlers uses the dominant cycle period as the length in computation of alpha.

According to Ehlers this should be more responsive than the non-adaptive version. Buy and sell signals should often occur one bar earlier than for the non-adaptive version.

I have the usual options in place. Check out plain CC for comparison.

More info:
- Cyber Cycle Indicator: - Cybernetic Analysis for Stocks and Futures ( Ehlers )

List of my public indicators: http://bit.ly/1LQaPK8
List of my app-store indicators: http://blog.tradingview.com/?p=970
סקריפט קוד פתוח

ברוח TradingView אמיתית, מחבר סקריפט זה פרסם אותו עם קוד פתוח, כך שסוחרים יוכלו להבין ולאמת זאת. הידד למחבר! אתה יכול להשתמש בו בחינם, אך שימוש חוזר בקוד זה בפרסום הנו בכפוף ל כללי הבית . אתה יכול להגדירו כמועדף ולהשתמש בו בגרף.

רוצה להשתמש בסקריפ זה בגרף?
//
// @author LazyBear 
// 
// List of my public indicators: http://bit.ly/1LQaPK8 
// List of my app-store indicators: http://blog.tradingview.com/?p=970 
//
study("Ehlers Adaptive Cyber Cycle Indicator [LazyBear]", shorttitle="EACCI_LB", overlay=false, precision=3)
src=input(hl2, title="Source") 
a=input(.07, title="Alpha")
s = (src + 2*src[1] + 2*src[2] + src[3])/6.0
c = n<7?(src - 2*src[1] + src[2])/4.0:((1 - 0.5*a)*(1 - 0.5*a)*(s - 2*s[1] + s[2]) + 2*(1-a)*c[1] - (1 - a)*(1-a)*c[2])
q1 = (.0962*c + 0.5769*c[2] - 0.5769*c[4] - .0962*c[6])*(0.5+.08*nz(ip[1]))
I1 = c[3]
dp_ = iff(q1 != 0 and q1[1] != 0, (I1/q1 - I1[1]/q1[1]) / (1 + I1*I1[1]/(q1*q1[1])),0)
dp = iff(dp_ < 0.1, 0.1, iff(dp_ > 1.1, 1.1, dp_))
med(x,y,z) => (x+y+z) - min(x,min(y,z)) - max(x,max(y,z))
md = med(dp,dp[1], med(dp[2], dp[3], dp[4]))
dc = iff(md == 0, 15, 6.28318 / md + 0.5)
ip = .33*dc + .67*nz(ip[1])
p = .15*ip + .85*nz(p[1])
a1 = 2.0/(p + 1)
ac=nz(((1-0.5*a1)*(1-0.5*a)*(s-2*s[1]+s[2])+2*(1-a1)*ac[1]-(1-a1)*(1-a1)*ac[2]), (src-2*src[1]+src[2])/4.0)
t=ac[1]
fr=input(true, title="Fill Osc/Trigger region")
plot(0, color=gray, title="ZeroLine")
duml=plot(fr?(ac>t?ac:t):na, style=circles, linewidth=0, color=gray, title="Dummy")
cmil=plot(ac, title="AdaptiveCyberCycle",color=blue)
tl=plot(t, title="Trigger",color=green)
fill(cmil, duml, color=red, transp=50, title="NegativeFill")
fill(tl, duml, color=lime, transp=50, title="PositiveFill")
ebc=input(false, title="Color bars?")
bc=ebc?(ac>0? (ac>t?lime:(ac==t?gray:green)): (ac<t?red:orange)):na
barcolor(bc)
List of my free indicators: http://bit.ly/1LQaPK8
List of my indicators at Appstore: http://blog.tradingview.com/?p=970

תגובות

Since you already coded so many Ehlers indicators this week I was afraid to ask for even more Ehlers :) I'm happy you decided yourself to complete the collection with the adaptive versions. In my test it surprised me that the Adaptive Cyber Cycle seems to be faster than the Adaptive Center Of Gravity (CG) indicator. I expected the Center Of Gravity to be faster, because it behaves similar to the classic stochastic indicator (which is very fast).

+3 השב
Another interesting early indication from ACC.

+3 השב
christina86 LazyBear
@LazyBear, Hey Lazy Bear :) Hope your well. Could you explain what the script is called for the indicator in the top main chart, that looks to be a trend indicator?
השב
Thanks for sharing!!!!! You have taken TV at much higher level!!! Appreciate your effort. Again a Great Indicator!!!!!!
+1 השב
LazyBear sudhir.mehta
Thank you for your kind words.
השב
Some more charts:

BTC 4hrs:


DXY 1D:

+1 השב
First of all, i'd like to thank for all contents and efford you share with us.
do you have any chance to add histogram to this indicator for detecting cross more responsive and sensible? if you can i would be so grateful LazyBear.
השב
@mjp152. Thank you. Yes i undestand now and have since coded in excel and vba.
My issue arose with the charting software i use which does not permit the reassignment of a value to a parameter (ip).
Appreciate your consideration. Thank you.
השב
REF: Ehlers Adaptive cybercycle.

could you please elaborate on the parameter "ip" in the code?

it is not defined in the code prior to being implemented in the calculation of "q1".

I am using a different language to Easylanguage and get a formatting error "undefined or unexpected character"

I am new to coding financial indicators (as you have probably guessed) and would very much appreciate any help.

thank you
השב
mjp152 hillab
@hillab, The problem seems to be circular dependencies in the code. The variable ip depends on another variable which depends on another variable which depends on ip. This was not a problem in earlier versions of easylanguage because the implementation of time was more sloppy - the scripts in version 2 could see into the future, called repainting - but this has fortunately been adressed in version 3. The downside is that a lot of the older script need to be reworked. In this case I would say that it is a good thing since it is quite messy code even if the indicator itself is useful.
השב
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