use the 'sqldf' package. Also use 'dput' to include sample data since
it was impossible to use the data in the format you provided, so my
guess at a solution would be:
answer <- sqldf("
select ECO_NAME
, count(distinct Order) as Order
, count(distinct Family) as Family
, count(distinct Genus) as Genus
from yourData
group by ECO_NAME
")
Not sure exactly what you wanted in the second question; it would be
nice to include what some sample output would be so we have an idea of
what you are after.
On Fri, May 20, 2011 at 5:18 PM, Chris Mcowen <chrismco...@gmail.com> wrote:
> Dear List,
>
> I am looking to calculate two things from my data frame and was after some
> advice. For the example below i want to know.
>
> 1. How many unique Orders/Families and Genera there are per eco-name
>
> 2. How many incidences are there for each Order/Family and Genus there are
> per eco-region
>
> I have 650 econame.
>
> I.e for Biak-Numfoor rain forests there are 2 orders, 2 families and two
> genera. Also, Alismatales are represented once, Asparagales once etc etc.
>
> Thanks for any advice.
>
> Chris
>
>
> ECO_NAME Order
> Family Genus
> Biak-Numfoor rain forests Alismatales
> Araceae Homalomena
> Biak-Numfoor rain forests Asparagales
> Orchidaceae Bromheadia
> Central Range montane rain forests Alismatales Araceae
> Homalomena
> Central Range montane rain forests Asparagales Lomandraceae
> Cordyline
> Central Range montane rain forests Asparagales Orchidaceae
> Thelymitra
> Central Range montane rain forests Asparagales Orchidaceae
> Dendrobium
> Central Range montane rain forests Asparagales Orchidaceae
> Vanda
> Central Range montane rain forests Asparagales Orchidaceae
> Bulbophyllum
> Central Range montane rain forests Asparagales Orchidaceae
> Bulbophyllum
> Central Range montane rain forests Asparagales Orchidaceae
> Dendrobium
> Central Range montane rain forests Asparagales Orchidaceae
> Dendrobium
> Central Range montane rain forests Commelinales Commelinaceae
> Murdannia
> Central Range montane rain forests Poales
> Centrolepidaceae Centrolepis
> Central Range montane rain forests Poales Cyperaceae
> Machaerina
> Central Range montane rain forests Poales Cyperaceae
> Eleocharis
> Central Range montane rain forests Poales Eriocaulaceae
> Eriocaulon
> Central Range montane rain forests Poales Poaceae
> Schizostachyum
> Central Range montane rain forests Poales Poaceae
> Poa
> Central Range montane rain forests Zingiberales Zingiberaceae
> Alpinia
> Central Range montane rain forests Zingiberales Zingiberaceae
> Curcuma
> Central Range montane rain forests Zingiberales Zingiberaceae
> Amomum
> Huon Peninsula montane rain forests Asparagales Orchidaceae
> Taeniophyllum
> Huon Peninsula montane rain forests Asparagales Orchidaceae
> Corybas
> Huon Peninsula montane rain forests Asparagales Orchidaceae
> Thelymitra
> Huon Peninsula montane rain forests Asparagales Orchidaceae
> Glomera
> Huon Peninsula montane rain forests Poales
> Centrolepidaceae Centrolepis
> Huon Peninsula montane rain forests Poales Poaceae
> Poa
> ______________________________________________
> R-help@r-project.org mailing list
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
Jim Holtman
Data Munger Guru
What is the problem that you are trying to solve?
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