IcmShapleyValuesResult

Returned by icmShapleyValues.

Field	Type	Meaning
values	number[] | Float64Array	Shapley fair-share $EV per seat (not chip chop)
method	string	Echo of option, e.g. "exact" or "monteCarlo"
se	number[] | Float64Array (optional)	Per-seat Monte Carlo standard error when method is monteCarlo

Semantics

values[i] is player i's Shapley allocation: average marginal contribution to coalition ICM prize pools over all join orders. Compare to chip-proportional chop or icmExpectedPayouts for the full-table Harville vector.

Under exact, se is omitted. Under monteCarlo, se holds per-player stderr from the permutation sampler.

Example

const poker = require('poker-calculations');

const { values, method, se } = poker.icmShapleyValues(
  [12000, 8000, 5000, 2000],
  [10000, 6000, 3000, 1000],
  { method: 'exact' },
);
console.log({ method, values, se });

See also

IcmShapleyValuesOptions · icmExpectedPayouts · Tournament, runouts, and bots