[R] Unexpected behaviour with seq() and %in%

Hi, During the course of putting together a function I came across some unexpected behaviour when using seq() and %in%. I am creating two numeric vectors using seq(), and then using %in% to find the values in one vector that are in the other. Sometimes all the values are found, but sometimes a val

[R] Automatic differentiation in R

s advice / time to offer? Also, would it be possible to also post this message in the R-devel list? I realise that this would mean 'double posting' but the potential for a generic AD interface affects many packages and may also be of interest to developers (e.g. John Nas