Hello all you helpful people out there! I am stil R Beginner using R 2.5.1 on a Apple Power Book G4 with Mac OS X 10.4.10 . I have two tabels like this: MalTabChi X1 X4 X6 X8 X10 X14 X21 X24 X29 X38 X43 X50 X67 X76 X78 X80 X82 X84 Anth_cap 1 1 1 1 6 5 1 45 12 4 12 6 56 5 2 4 1 1 Anth_crin 12 1 1 2 76 5 1 45 256 2 25 56 56 345 2 23 1 2 Anth_eck 12 1 12 1 7 5 12 5 14 45 2 56 4 5 2 34 1 12 Anth_gram 2 1 1 1 6 5 1 25 25 23 25 45 5 45 2 23 1 12 Anth_insi 2 1 1 2 63 5 1 4 2 2 2 45 45 45 12 3 1 23 Anth_laxi 12 1 1 12 7 45 1 5 245 23 5 46 56 345 2 23 1 12 Anth_sing 1 1 2 1 7 2345 1 4 129 2345 12 46 4 5 23 2 1 1 Aski_albo_ari 3 1 1 2 6 5 2 46 2 34 15 34 5 5 3 4 1 1 Aski_alt 13 1 1 2 6 5 2 4 2 3 15 46 5 5 2 34 3 1 Aski_and 1 1 2 2 6 5 2 5 <NA> <NA> 1 36 4 5 3 3 3 1 Aski_capi 3 1 1 2 63 5 2 5 2 3 5 45 4 5 3 3 1 1............. FemTabChi X1 X4 X6 X8 X10 X14 X21 X24 X29 X38 X43 X50 X67 X76 X78 X80 X82 X84 Anth_cap 1 1 1 2 4 4 1 5 6 14 2 6 56 5 2 23 1 1 Anth_crin 1 1 1 2 47 5 1 45 6 1 2 45 5 34 2 3 1 23 Anth_eck 1 1 1 2 4 5 1 45 6 1 2 56 46 345 2 3 1 12 Anth_gram 1 1 1 2 <NA> 5 2 5 <NA> 4 <NA> 56 56 5 2 3 1 1 Anth_insi 1 1 1 2 3 5 1 4 26 25 2 4 5 5 2 3 1 234 Anth_laxi 1 1 1 2 47 5 1 56 6 24 2 4 5 345 21 23 1 1 Anth_sing 1 1 1 2 47 24 1 2 24 2 2 4 4 5 2 12 1 1 Aski_albo_ari 2 1 1 2 4 5 2 4 2 34 15 4 5 5 3 4 1 1 Aski_alt 12 1 1 2 4 5 2 4 89 5 15 46 5 5 2 3 3 1 Aski_and 1 1 1 2 4 5 2 5 259 5 1 46 25 5 2 23 1 1 Aski_capi 23 1 1 2 234 5 2 5 2459 235 5 46 5 34 3 3 1 1 Aski_chart 12 1 1 2 4 5 2 4 29 2 15 4 25 5 2 34 3 1 Aski_deli 2 1 1 2 <NA> 45 12 4 6 2 5 46 5 3 3 4 1 1.......... The variables are factors and I would like to perform a ChiSquare Test, comparing for example X1(first Table) to X1(secondTable)(Null Hypothesis: Variables are equal) Depending on the variables are the factor levels 1 up to 9. But as you immediately see, there is often more than one answer per species in the variables (Example 129). My question is now: how can I say to R that these numbers have to be treated separately? In the example as a 1, a 2 and a 9 and not as 129) I really hope you understand what I mean. If not please ask me. I would be very pleased, if somebody could help me. Greetings Birgit Birgit Lemcke Institut für Systematische Botanik Zollikerstrasse 107 CH-8008 Zürich Switzerland Ph: +41 (0)44 634 8351 birgit.lemcke@systbot.uzh.ch [[alternative HTML version deleted]]