Paired comparison data is entered as only two observations in each row (or each column). The raw score of every row (or column) is identical. In the simplest case, the "winner" receives a '1', the "loser" a '0', and all other column (or rows) are left blank, indicating missing data.

 

Example: Data for a chess tournament is entered. Each row is a player. Each column a match. The winner is scored '2', the loser '0' for each match. For draws, each player receives a '1'.

PAIRED=YES ; paired comparisons

  CODES=012  ; valid outcomes

  NI=56  ; number of matches