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argp
2010 Jun 13
5
Count of unique factors within another factor
...t species
1 123 ACMA
2 123 LIDE
3 123 LIDE
4 123 SESE
5 123 SESE
6 123 SESE
7 345 HEAR
8 345 LOHI
9 345 QUAG
10 345 TODI?..
> sr.unique<- lapply (data, unique)
$unit
[1] 123 345 216
$species
[1] ACMA LIDE SESE HEAR LOHI QUAG TODI UMCA ARSP LIDE
> sapply (sr.unique,length)
unit species
3 10
Then, I get stuck here because this unique species count is not given for
each ?unit?.
What I'd like to get is:
unit species
123 3
345 4
216 --
Thanks--
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