Dear all, does anybody know whether it is possible to run a hierarchical partitioning analysis that includes interactions between predictors? And if so, what is the script to be used in R? So far, I've run only partitioning analisys based on additive models (e.g. Y~X+Z), and I couldn't find any partioning done with interactions (e.g. Y~X+Z+X*Z)... Thanks in advance! Luca ------------------------------------------------------------------------------- Valore legale alle tue mail InterfreePEC - la tua Posta Elettronica Certificata http://pec.interfree.it