#NEWLINE# @ property #NEWLINE# def _null_results_matrix( self ) : #NEWLINE# #INDENT# '\n        Returns:\n        --------\n            A null matrix (i.e. fully populated with zero values) using\n            lists of the form required for the results dictionary.\n\n            i.e. one row per player, containing one element per opponent (in\n            order of player index) which lists values for each repetition.\n        ' #NEWLINE# plist = list ( range ( self . nplayers ) ) #NEWLINE# replist = list ( range ( self . nrepetitions ) ) #NEWLINE# return [ [ [ 0 for j in plist ] for i in plist ] for r in self ]