On Mon, Apr 14, 2008 at 08:52:36PM +0800, Ng Stanley wrote: > Hi, > > Didn't make myself clear on A). The twenty OBs are all different, how to > store them in a vector or list ? bigOB <- list(OB1, OB2, OB3, ..., OB20) G. [...] -- Csardi Gabor <csardi at rmki.kfki.hu> UNIL DGM