Hi, My code is: andeti1 <- read.csv(file='andarai1.csv',head=T,sep=";") andeti1lm <- lm(formula = valor ~ area+salao+quarto3+play+vaga+frente, data = andeti1) step(andeti1lm,direction=c("both"),steps=1000,k=2) How can I specify "scope" parameter in "step" command? Thanks. -- S?vio Martins Ramos - Arquiteto Rio de Janeiro ICQ 174972645 Pirataria n?o! Seja livre: Linux http://www.debian.org