[R] Concat two rows

alcesgabbo alcesgabbo at hotmail.com
Tue Nov 30 09:30:07 CET 2010

I have a table like this:

A           B
aaa       111
bbb       222
ccc       333
ddd       444

and I would like a new row C:

A           B           C
aaa       111      aaa.111
bbb       222      bbb.222
ccc       333      ccc.333
ddd       444      ddd.444

How can I do this


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