Is there an R analog of the Unix command uniq -c:
http://en.wikipedia.org/wiki/Uniq
Given an array x, uniq -c replaces each contiguous subsequence of
identical numbers with a tuple (count, number). E.g.
$ cat > usample
10
10
9
8
8
7
7
7
6
3
1
1
1
0
$ uniq -c usample
2 10
1 9
2 8
3 7
1 6
1 3
3 1
1 0
Cheers,
Alexy
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