volatility standard dev

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dlahyani
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volatility standard dev

Postby dlahyani » 03 Aug 2009

Hi,

is it possible to plot a standard deviation on an indicator?

Daniel

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TJ
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Postby TJ » 03 Aug 2009

yes, there is a function called StvDev.

From your PLEditor,

Open> Study Type: select Function

you will see the function there.

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TJ
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Postby TJ » 03 Aug 2009

StdDev (Function)


The StdDev function calculates a standard deviation of a population of values.


Syntax

StdDev( Price, Length )


Returns (Double)

A numeric value containing the current standard deviation.


Parameters

Price Numeric

Specifies which bar value (price, function, or formula) to be considered.

Length Numeric

Sets the number of bars to be considered.


Remarks

To find the standard deviation,
first find the variance and then take its square root.


Example

Assigns to Value1 the standard deviation of Close over 10 bars.

Value1 = StdDev(Close, 10);
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dlahyani
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Std.dev

Postby dlahyani » 04 Aug 2009

thanks TJ,

what I need is to plot the std deviation of a spread ratio.
you're explanation seem simple but I'm not familiar with programing.

Daniel

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TJ
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Postby TJ » 04 Aug 2009

if you are not familiar with programming, you can start by

downloading the free ebook Getting Started with EasyLanguage from the web.

dlahyani
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Joined: 06 Feb 2007

Std.dev

Postby dlahyani » 04 Aug 2009

hey TJ,

thank you for your education but I have no plans to dig into programming.
I was thinking MC could do that by default.

Best/Daniel

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Andrew Kirillov
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Postby Andrew Kirillov » 13 Aug 2009

Daniel,
It is really simple:
Just add custom 1 line indicate and insert this as a custom formula:

StandardDev (Average(Close,10),10,1)

It plots Std dev for moving average


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