egttools.behaviors.NormalForm.TwoActions.GRIM

class GRIM(self: egttools.numerical.numerical.behaviors.NormalForm.TwoActions.GRIM)

Bases: AbstractNFGStrategy

Grim (Trigger): Cooperates until its opponent has defected once, and then defects for the rest of the game.

Methods

get_action	Returns an action in function of time_step round and the previous action action_prev of the opponent.
is_stochastic	Indicates whether the strategy is stochastic.
type	Returns a string indicating the Strategy Type.

__init__(self: egttools.numerical.numerical.behaviors.NormalForm.TwoActions.GRIM) → None

Grim (Trigger): Cooperates until its opponent has defected once, and then defects for the rest of the game.

__new__(**kwargs)

get_action(self: egttools.numerical.numerical.behaviors.NormalForm.TwoActions.GRIM, time_step: int, action_prev: int) → int

Returns an action in function of time_step round and the previous action action_prev of the opponent.

Parameters

• time_step (int) – Current round.

• action_prev (int) – Previous action of the opponent.

Returns

The action selected by the strategy.

Return type

int

See also

egttools.games.AbstractGame, egttools.behaviors.NormalForm.TwoActions.Cooperator, egttools.behaviors.NormalForm.TwoActions.Defector, egttools.behaviors.NormalForm.TwoActions.Random, egttools.behaviors.NormalForm.TwoActions.TFT, egttools.behaviors.NormalForm.TwoActions.SuspiciousTFT, egttools.behaviors.NormalForm.TwoActions.GenerousTFT, egttools.behaviors.NormalForm.TwoActions.GradualTFT, egttools.behaviors.NormalForm.TwoActions.ImperfectTFT, egttools.behaviors.NormalForm.TwoActions.TFTT, egttools.behaviors.NormalForm.TwoActions.TFTT, egttools.behaviors.NormalForm.TwoActions.Pavlov

is_stochastic(self: egttools.numerical.numerical.behaviors.NormalForm.TwoActions.GRIM) → bool

Indicates whether the strategy is stochastic.

type(self: egttools.numerical.numerical.behaviors.NormalForm.TwoActions.GRIM) → str

Returns a string indicating the Strategy Type.