Dear R users,
My data have repeating "beh" parameter : 1 or 2 - type of animal behavior
in subsequent locations. I need to assign unique number to each sequence of
locations.
My data is:
>data=data.frame(row=seq(1:10),beh=c(1,1,1,2,2,2,1,1,2,2))
>attach(data)
>data
row beh
1 1 1
2 2 1
3 3 1
4 4 2
5 5 2
6 6 2
7 7 1
8 8 1
9 9 2
10 10 2
I need the output like this:
row beh seq trip.id
1 1 1 1 1
2 2 1 2 1
3 3 1 3 1
4 4 2 1 2
5 5 2 2 2
6 6 2 3 2
7 7 1 1 3
8 8 1 2 3
9 9 2 1 4
10 10 2 2 4
I managed to assign sequence numbers inside of each group:
> seq<-sequence(rle(beh)$length)
> new<-cbind(data,seq)
> new
row beh seq
1 1 1 1
2 2 1 2
3 3 1 3
4 4 2 1
5 5 2 2
6 6 2 3
7 7 1 1
8 8 1 2
9 9 2 1
10 10 2 2
but I cant assign the numbers to the groups (the parameter "trip.id")... I
would appreciate any help.
Regards,
Lilia
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