Hello,
Try the following.
(I've named your data.frame 'dat')
do.call(rbind, lapply(split(dat, dat$`No.`), tail, 1))
Hope this helps,
Rui Barradas
Em 17-01-2013 10:50, Mat escreveu:
Hello togehter,
i have a data.frame like this one:
No. Date last change
1 1 2012-10-04 change settings
2 1 2012-10-20 bug fix
3 1 2012-11-05 final
4 2 2013-01-15 new task
5 2 2013-01-16 Bug fix
6 2 2013-01-17 final
now i want a new data.frame, who show me only the newest entries according
to the No.
The solution look like this one:
No. Date last change
1 1 2012-11-05 final
2 2 2013-01-17 final
can anyone help me?
thanks.
Mat
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