Dear all, I'm new R's user and I'm looking for package dealling with Path analysis. Does it exist ? Where ? Best, Regis Martin PhD Student Laboratory of Altitutdinal Population Biology UMR CNRS 5553 Universté de Savoie Bât. Belledonnes 00 33 (0)4 79 75 86 44 regis.martin at univ-savoie.fr