Thanks Jeff, Uwe. The last case was indeed because of a typo, where I typed "ToothGrow" instead of "ToothGrowth". Many apologies...! s.b. -- View this message in context: http://r.789695.n4.nabble.com/Missing-datasets-2-13-1-tp3743896p3744249.html Sent from the R help mailing list archive at Nabble.com.