[R] Multiple count if style "queries"

[Chris Mcowen]

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