hopefully it is here, two files, one of them is .dat and the others is .txt, just in case. http://n4.nabble.com/file/n1290026/hiv.dat hiv.dat http://n4.nabble.com/file/n1290026/hiv.txt hiv.txt -- View this message in context: http://n4.nabble.com/More-than-on-loop-tp1015851p1290026.html Sent from the R help mailing list archive at Nabble.com.