search for: abundancep

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Did you mean: abundance
2005 Nov 08
2
retrieve most abundant species by sample unit
...frame to omit cover below 5%; this is what it looks like stacked. I have experimented with tapply(), by(), and some functions mentioned in archived postings, but I haven't seen anything that answers to this directly. Does anybody have any ideas? OBJECTID PolygonID SpeciesCod AbundanceP 1 15006 ANT-CBG-rr1 Leymol 5.00000 3 15008 ANT-CBG-rr1 Ambcha 5.00000 5 15010 ANT-ESH-27 Atrpat 20.00000 6 15011 ANT-ESH-27 Ambcha 10.00000 11 15016 ANT-ESH-28 Salvir 20.00000 14 15019 ANT-ESH-28 Atrpa...