vegtf {ade4} | R Documentation |
This data set contains abundance values (Braun-Blanquet scale) of 80 plant species for 337 sites. Data have been collected by Sonia Said and Francois Debias.
data(vegtf)
vegtf
is a list containing the following objects :
Dray, S., Said, S. and Debias, F. (2008) Spatial ordination of vegetation data using a generalization of Wartenberg's multivariate spatial correlation. Journal of vegetation science, 19, 45–56.
if (require(spdep, quiet=TRUE)){ data(vegtf) coa1 <- dudi.coa(vegtf$veg,scannf=FALSE) ms.coa1 <- multispati(coa1,listw=nb2listw(vegtf$nb),nfposi=2,nfnega=0,scannf=FALSE) summary(ms.coa1) plot(ms.coa1) par(mfrow=c(2,2)) s.value(vegtf$xy,coa1$li[,1],area=vegtf$area,include.origin=FALSE) s.value(vegtf$xy,ms.coa1$li[,1],area=vegtf$area,include.origin=FALSE) s.label(coa1$c1) s.label(ms.coa1$c1) }