Very nice, i really like this one! May confuse non-R users, but that's not a concern here. Thanks a lot, baptiste On 30 May 2008, at 13:19, Charilaos Skiadas wrote: > > I think this is where the beauty of ... comes in, the following > should be doing just what you want: > > sapply(my.data, apply, 2, intg, x)