create/use payoff matrix

[rbsoc...@gmail.com]

I need to set up a game theory-based payoff matrix.  There are two players (A/row and B/col) each with two identical alternatives (x and y).  My matrix is:

[[-1,2][-2,-1]]

[[2,-2][1,1]]

So two questions: What’s the best way to create this matrix? Then how can I retrieve values from the matrix to create score variables for each player?

Thanks, RB

[James Steiner]

NetLogo Lists are a fine way to do this.

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[Chris Ruebeck]

Agreed, and you’re almost there. Start with the Lists entry in the User Manual’s Programming Guide section, and go from there. Pay particular attention to lists of lists and using the ‘item’ command.

You can use ‘myself’ to have one turtle’s action index the payoff to the sublist indexed by the action of turtle that it’s playing with (where ‘action’ is a turtle variable). Of course, there are other ways to do it that are less “in the language”.

On Sep 22, 2023, at 6:05 PM, James Steiner <ja...@turtlezero.com> wrote:



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[rbsoc...@gmail.com]

Thanks.  Will look at list of lists.  May go with the more clunky but less complex series of ifelse statements.

RB