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.dalgaard@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             Øster Farimagsgade 5, Entr.B
>  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
>  (*) \(*) -- University of Copenhagen   Denmark      Ph:  (+45) 35327918
> ~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)              FAX: (+45) 35327907
>

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