If results are *very* different, I would suspect that R treated "experien" as a factor (when you use "read.spss" the default is to use value labels, which makes R treat such variables as factors --> set "use.value.labels = F"). Another explanation could be missing data in SPSS (not sysmis, but coded with, say -99) that are not recognized by R. Florian
________________________________ Von: [EMAIL PROTECTED] im Auftrag von Celso Barros Gesendet: Fr 07.07.2006 07:13 An: [email protected] Betreff: [R] Diverging results with SPSS Dear List, I apologize in advance if this is silly. I tried to replicate an analysis I did previously in SPSS using R, and was surprised to find different results. So my question is: shouldn't the following SPSS syntax REGRESSION DEPENDENT INC89 /METHOD=ENTER hiedyrs experien SE93rec. Yeld the same results of the following R command modelB<-lm(INC89~HIEDYRS+EXPERIEN+SE93REC) I assume the is some difference in some default options.Or maybe it was a problem when the data was imported. After using the read.spss in the foreign package, I got the following warning message: Unrecognized record type 7, subtype 16 encountered in system file Thanks in advance for the help and apologies for the trouble, Celso [[alternative HTML version deleted]] ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html [[alternative HTML version deleted]] ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
