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 de código abierto

Siguiendo el verdadero espíritu de TradingView, el autor de este script lo ha publicado en código abierto, para que los traders puedan entenderlo y verificarlo. ¡Un hurra por el autor! Puede utilizarlo de forma gratuita, aunque si vuelve a utilizar este código en una publicación, debe cumplir con lo establecido en las Normas internas. Puede añadir este script a sus favoritos y usarlo en un gráfico.

Exención de responsabilidad

La información y las publicaciones que ofrecemos, no implican ni constituyen un asesoramiento financiero, ni de inversión, trading o cualquier otro tipo de consejo o recomendación emitida o respaldada por TradingView. Puede obtener información adicional en las Condiciones de uso.

¿Quiere utilizar este script en un gráfico?
//
// @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")