To all the people involved: I incorrectly reported the negative value of the adjusted R-squared as a bug in the last version of R. I was not careful enough in checking the details and I apologize for the time that some people had to waste. I will be more careful next time. Some packages report values greater that or equal to zero and use zero when negative, but certainly this is not necessary. Joaquin Diaz-Saiz -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-devel-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._