ade4 (version 1.6-2)

vegtf: Vegetation in Trois-Fontaines

Description

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.

Usage

data(vegtf)

source

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.

Examples

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)
}