Finance::GeniusTrader::Indicators::ElderRay->new([13])
It has been invented by Alexander Elder, and it is explained in his book "Trading for a living" ("Vivre du trading" in french).
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.