Key points are not available for this paper at this time.
A method is prese nted for th e analysis of data re prese ntin g fun c tion s of two variables , when the res pon se ca n be tabulate d in a rec tangular array. Th e procedure is based o n a partiti onin g of the row by column inte rac tion e ffe c ts into a s um of terms, eac h of which is th e produ c t of a row fac tor by a column fa c tor. The factors in eac h te rm a re est im a te d by a method involv ing th e ext rac ti on of c ha rac te ristic roots.
John Mandel (1969) studied this question.