LazyBear

Volatility Switch Indicator [LazyBear]

The Volatility Switch (VOLSWITCH) indicator, by Ron McEwan, estimates current volatility in respect to historical data, thus indicating whether the market is trending or in mean reversion mode. Range is normalized to 0 - 1.

When Volatility Switch rises above the 0.5 level, volatility in the market is increasing, thus the price action can be expected to become choppier with abrupt moves. When the indicator falls below the 0.5 level from recent high readings, volatility decreases, which may be considered a sign of trend formation.

Trading strategy as suggested by Ron McEwan is:
- If VOLSWITCH is less than 0.5, volatility decreases, which may be considered a sign of trend formation
- If VOLSWITCH is greater than 0.5, market is in high volatility mode. Can be choppy. Use RSI to look for OB/OS levels.

I have implemented support for 2 lengths (14 and 21) Note that, Pine doesn't support loops. Once it is introduced, I will publish an updated version.

Building a strategy out of this is straightforward (refer to my strategy explanation above), I strongly encourage new Pinescript coders to try to a plotarrow() based overlay indicator to get more familiar with Pine.

More info:
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The Volatility (Regime) Switch Indicator : traders.com/Document.../2013/02/McEwan.html

Complete list of my indicators:
-------------------------------------
docs.google.com...ByMEvm5MLo/edit?usp=sharin...

List of my free indicators: bit.ly/1LQaPK8
List of my indicators at Appstore: blog.tradingview.com/?p=970
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.

Clause de non-responsabilité

Les informations et les publications ne sont pas destinées à être, et ne constituent pas, des conseils ou des recommandations en matière de finance, d'investissement, de trading ou d'autres types de conseils fournis ou approuvés par TradingView. Pour en savoir plus, consultez les Conditions d'utilisation.

Vous voulez utiliser ce script sur un graphique ?
//
// @author LazyBear 
// List of all my indicators: 
// https://docs.google.com/document/d/15AGCufJZ8CIUvwFJ9WIKns88gkWOKBCvByMEvm5MLo/edit?usp=sharing
//
study(title="Volatility Switch [LazyBear]", shorttitle="VOLSWITCH_LB")
dr= roc(close,1)/sma(close,2)
dummy=input(false, title="------- Choose lengths below ----"), il21=input(true, title="21"), il14=input(false, title="14")

vola21=stdev(dr, 21)
vswitch21=((vola21[1] <= vola21 ) + (vola21[2] <= vola21 ) +   (vola21[3] <= vola21 ) +   
		(vola21[4] <= vola21 ) +  (vola21[5] <= vola21 ) + (vola21[6] <= vola21 ) +   
		(vola21[7] <= vola21 ) +  (vola21[8] <= vola21 ) +  (vola21[9] <= vola21 ) +  
		(vola21[10] <= vola21 ) + (vola21[11] <= vola21 ) +  (vola21[12] <= vola21 ) +  
		(vola21[13] <= vola21 ) +  (vola21[14] <= vola21 ) +  (vola21[15] <= vola21 ) +  
		(vola21[16] <= vola21 ) +  (vola21[17] <= vola21 ) +  (vola21[18] <= vola21 ) +  
		(vola21[19] <= vola21 ) +  (vola21[20] <= vola21 ) + 1) / 21

vola14=stdev(dr, 14)
vswitch14=((vola14[1] <= vola14 ) + (vola14[2] <= vola14 ) +   (vola14[3] <= vola14 ) +   
		(vola14[4] <= vola14 ) +  (vola14[5] <= vola14 ) + (vola14[6] <= vola14 ) +   
		(vola14[7] <= vola14 ) +  (vola14[8] <= vola14 ) +  (vola14[9] <= vola14 ) +  
		(vola14[10] <= vola14 ) + (vola14[11] <= vola14 ) +  (vola14[12] <= vola14 ) +  
		(vola14[13] <= vola14 ) + 1) / 14 
 
hline(0.5, title="Median")
plot(il21?vswitch21:na, color=red, linewidth=2, title="VOLSWITCH_21")
plot(il14?vswitch14:na, color=green, linewidth=2, title="VOLSWITCH_14")