There are three columns, I was just careless. I succeed to merge the two tables. But: 1) in the first table there were rows, which were not present in the second table, these rows were deleted from the merged table too, but I need them. 2) If i want to import from the second table just a certain column, not all that is missing from the first, how can i do that? 3) How can I save the generated table?
Sorry about the banal questions.... I'm beginner. And thanks for the help... Have a nice day 2009/2/15 Peter Dalgaard <p.dalga...@biostat.ku.dk> > Vincze Orsolya wrote: > >> Dear all,I had just started to learn R. So my question may sound a bit >> stupid for you. >> Is that possible to match and merge two tables in R? I mean I have two >> tables, in the first I have two columns: RING NUMBER, WEIGHT and CAPTURE >> > > Err, ... for large values of "two"? Or is one of the three a rowname? > > DATE, in the second RING NUMBER, SEX and CAPTURE DATE. >> 1) First I want to see, if to the ring numbers are the same, the capture >> dates are too? >> 2) And second if ring numbers are the same, to import the sex from the >> second table in the first. >> >> Is that possible? >> > > Yes. It's a job for merge() > > -- > O__ ---- Peter Dalgaard Ă˜ster Farimagsgade 5, Entr.B > c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K > (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 > ~~~~~~~~~~ - (p.dalga...@biostat.ku.dk) FAX: (+45) 35327907 > [[alternative HTML version deleted]]
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