Standard Deviation is a statistical measure of volatility. Standard Deviation is typically used as a component of other indicators, rather than as a stand-alone indicator. For example, Bollinger Bands are calculated by adding a security's Standard Deviation to a moving average.
High Standard Deviation values occur when the data item being analyzed (e.g., prices or an indicator) is changing dramatically. Similarly, low Standard Deviation values occur when prices are stable.
Many analysts feel that major tops are accompanied with high volatility as investors struggle with both euphoria and fear. Major bottoms are expected to be calmer as investors have few expectations of profits.
http://www.equis.com/free/taaz/standardevia.html
To install Finance::GeniusTrader, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Finance::GeniusTrader
CPAN shell
perl -MCPAN -e shell install Finance::GeniusTrader
For more information on module installation, please visit the detailed CPAN module installation guide.