[R] converting character vector "hh:mm" to chron or strptime 24 clock time vectors

[Jim Lemon]

> ...
> If it gets too confusing, just coerce your POSIXlt objects to POSIXct
> objects which don't have issues with odd lengths.
>
Thanks to Mark and Charlie, your messages have enlightened me and 
hopefully provided a solution for Alex, who was the one with the problem.

tdata$datetime<-as.POSIXct(strptime(paste(tdata$date,tdata$time,sep="-"),
  "%Y/%m/%d-%H:%M"))

Jim