Program HOLMES devised by target factor analysis has been updated for perfo
rming procrustes discriminant analysis (PDA). Computational details are out
lined. The equivalence between PDA and partial least squares-discriminant a
nalysis (PLS-DA) is established. Application of the PDA is illustrated by t
wo case studies taken from literature. (C) 1999 Elsevier Science B.V. All r
ights reserved.