Say I want to include the data from Minard's march on Moscow graphic in a package. They consist of three data frames, Minard.troops, Minard.cities, Minard.temp. I've determined that I can document them all in one .Rd file, Minard.Rd, that starts: \name{Minard} \Rdversion{1.1} \alias{Minard} \alias{Minard.cities} \alias{Minard.troops} \alias{Minard.temp} \docType{data} \title{ Data from Minard's famous graphic map of Napoleon's march on Moscow } ... \usage{ data(Minard.troops) data(Minard.cities) data(Minard.temp) } ... But, AFAICS, it seems I have to save each of these in a separate .RData / .rda file for them to be found by R CMD check. Is this correct, or is there some way to include them all in a Minard.RData, via save(Minard.troops, Minard.cities, Minard.temp, file="Minard.RData") -Michael -- Michael Friendly Email: friendly AT yorku DOT ca Professor, Psychology Dept. York University Voice: 416 736-5115 x66249 Fax: 416 736-5814 4700 Keele Street http://www.math.yorku.ca/SCS/friendly.html Toronto, ONT M3J 1P3 CANADA