Hi listers, I check it out at the messages... But I didn't find how do I use the while with 2 conditions... while (a>1 ????? b>1){ a<-2 b<-2 } Should I use what... Thanks in advance, Marcio -- View this message in context: http://www.nabble.com/While-with-2-conditions-tp22252945p22252945.html Sent from the R help mailing list archive at Nabble.com.