An envelope is composed of two moving averages. One moving average is shifted upward and the second moving average is shifted downward. Envelopes define the upper and the lower boundaries of a security's normal trading range.
The standard envelope (ENV 25-6) can be called like that : Finance::GeniusTrader::Indicators::ENV->new()
If you need a non standard ENV : Finance::GeniusTrader::Indicators::ENV->new([21, 5])
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.