The attachment did not work so I am trying it again. This time I am naming the file problem.RData.txt (its an ascii save file). -------------- next part -------------- RDA2 A 2 133889 131840 1026 1 9 3 zz2 526 1 1 1026 1 9 5 class 16 2 9 6 zooreg 9 3 zoo 254 254