Algorithm::Kelly - calculates the fraction of a bankroll to bet using the Kelly formula
version 0.03
use Algorithm::Kelly; use feature 'say'; say optimal_f(0.5, 2); # 0.25
Returns the optimal fraction of bankroll to wager, using the Kelly Criterion, given the $probability and $payoff. Payoff should be the net odds of the wager, so the value of 3-to-1 would be 3. The optimal_f() sub is exported by default.
$probability
$payoff
optimal_f()
Odds are usually presented in one of three styles: decimal, fraction or American. The optimal_f sub requires the net decimal odds. These odds are all equal:
optimal_f
Type Example Net Odds ---- -------- -------- Decimal 4.0 3.0 Fraction 3/1 3.0 American +300 3.0
The different odds representations are also explained here.
David Farrell <dfarrell@cpan.org>
This software is copyright (c) 2015 by David Farrell.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
To install Algorithm::Kelly, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Algorithm::Kelly
CPAN shell
perl -MCPAN -e shell install Algorithm::Kelly
For more information on module installation, please visit the detailed CPAN module installation guide.