Can anyone explain me the following behavior: > 1:2/1 [1] 1 2 -- makes sense > 1:2/matrix(1,1,1) [1] 1 2 -- makes sense > 1:2/data.frame(a=1) a 1 1 -- why is this different? Best, Ott -- Ott Toomet Visiting Researcher School of Information Mary Gates Hall, Suite 095 University of Washington Seattle, WA 98195 [[alternative HTML version deleted]]