On Apr 17, 2013, at 10:16 , Shane Carey wrote: > Can you resend this link please? > Psst: https://stat.ethz.ch/pipermail/r-help/2013-April/351669.html -- Peter Dalgaard, Professor Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd.mes at cbs.dk Priv: PDalgd at gmail.com