avimedi {ade4} | R Documentation |
avimedi
is a list containing the information about 302 sites :
frequencies of 51 bird species ; two factors (habitats and Mediterranean origin).
data(avimedi)
This list contains the following objects:
reg
with two levels Provence (Pr
,
South of France) and Corsica (Co
) ;
str
with six levels describing the vegetation from a very low matorral (1) up to a mature forest of holm oaks (6).Blondel, J., Chessel, D., & Frochot, B. (1988) Bird species impoverishment, niche expansion, and density inflation in mediterranean island habitats. Ecology, 69, 1899–1917.
## Not run: data(avimedi) par(mfrow = c(2,2)) coa1 <- dudi.coa(avimedi$fau, scan = FALSE, nf = 3) s.class(coa1$li,avimedi$plan$str:avimedi$plan$reg, sub = "Correspondences Analysis") bet1 <- between(coa1, avimedi$plan$str, scan = FALSE) s.class(bet1$ls, avimedi$plan$str, sub = "Between Analysis") wit1 <- within(coa1, avimedi$plan$reg, scan=FALSE) s.class(wit1$li, avimedi$plan$str, sub = "Within Analysis") pcaiv1 <- pcaiv(coa1, avimedi$plan, scan = FALSE) s.match(pcaiv1$li, pcaiv1$ls, clab = 0, sub = "Canonical Correspondences Analysis") s.class(pcaiv1$li, avimedi$plan$str:avimedi$plan$reg, add.plot = TRUE) par(mfrow=c(1,1)) ## End(Not run)