HPotter

Elder Ray (Bear Power) Strategy

Developed by Dr Alexander Elder, the Elder-ray indicator measures buying
and selling pressure in the market. The Elder-ray is often used as part
of the Triple Screen trading system but may also be used on its own.
Dr Elder uses a 13-day exponential moving average ( EMA ) to indicate the
market consensus of value. Bear Power measures the ability of sellers to
drive prices below the consensus of value. Bear Power reflects the ability
of sellers to drive prices below the average consensus of value.
Bull Power is calculated by subtracting the 13-day EMA from the day's High.
Bear power subtracts the 13-day EMA from the day's Low.
You can use in the xPrice any series: Open, High, Low, Close, HL2 , HLC3, OHLC4 and ect...

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Script open-source

Dans le véritable esprit de TradingView, l'auteur de ce script l'a publié en open-source, afin que les traders puissent le comprendre et le vérifier. Bravo à l'auteur! Vous pouvez l'utiliser gratuitement, mais la réutilisation de ce code dans une publication est régie par le règlement. Vous pouvez le mettre en favori pour l'utiliser sur un graphique.

Vous voulez utiliser ce script sur un graphique ?
////////////////////////////////////////////////////////////
//  Copyright by HPotter v1.0 23/07/2014
// Developed by Dr Alexander Elder, the Elder-ray indicator measures buying 
// and selling pressure in the market. The Elder-ray is often used as part 
// of the Triple Screen trading system but may also be used on its own.
// Dr Elder uses a 13-day exponential moving average (EMA) to indicate the 
// market consensus of value. Bear Power measures the ability of sellers to 
// drive prices below the consensus of value. Bear Power reflects the ability 
// of sellers to drive prices below the average consensus of value.
// Bull Power is calculated by subtracting the 13-day EMA from the day's High. 
// Bear power subtracts the 13-day EMA from the day's Low.
// You can use in the xPrice any series: Open, High, Low, Close, HL2, HLC3, OHLC4 and ect...
////////////////////////////////////////////////////////////
study(title="Elder Ray (Bear Power) Strategy")
Length = input(13, minval=1)
Trigger = input(0)
hline(0, color=purple, linestyle=line)
xPrice = close
xMA = ema(xPrice,Length)
DayLow = iff(dayofmonth != dayofmonth[1], low, min(low, nz(DayLow[1])))
nRes = DayLow - xMA
pos =	iff(nRes > Trigger, 1,
	    iff(nRes < Trigger, -1, nz(pos[1], 0))) 
barcolor(pos == -1 ? red: pos == 1 ? green : blue )
plot(nRes, color=blue, title="Bear Power", style = histogram)