# PainStaking

Bet stake sizing in Elixir:

- Kelly Criterion
- Arbitrage

## Examples

```
PainStaking.kelly_size(20000, [prob: 0.54], [us: "-120"])
{false, 0.0} # no edge, no bet
PainStaking.kelly_size(20000, [prob: 0.55], [us: "-120"])
{true, 200.0} # small edge, small bet

PainStaking.arb_size(1000, [[us: "+100"], [eu: 2.00]])
false, [0.0, 0.0], 0.0} # No arb, 0 on each, net 0
PainStaking.arb_size(1000, [[us: "+100"], [eu: 2.10]])
{true, [500.0, 476.19], 23.81} # Arb available, bet on each, net 23.81 regardless of outcome
```