mollusc {ade4} | R Documentation |
This data set gives the abundance of 32 mollusk species in 163 samples. For each sample, 4 informations are known : the sampling sites, the seasons, the sampler types and the time of exposure.
data(mollusc)
mollusc
is a list of 2 objects.
Richardot-Coulet, M., Chessel D. and Bournaud M. (1986) Typological value of the benthos of old beds of a large river. Methodological approach. Archiv fùr Hydrobiologie, 107, 363–383.
data(mollusc) coa1 <- dudi.coa(log(mollusc$fau + 1), scannf = FALSE, nf = 3) par(mfrow = c(2,2)) s.chull(coa1$li, mollusc$plan$site, 2, 3, opt = 1, cpoi = 1) s.chull(coa1$li, mollusc$plan$season, 2, 3, opt = 1, cpoi = 1) s.chull(coa1$li, mollusc$plan$method, 2, 3, opt = 1, cpoi = 1) s.chull(coa1$li, mollusc$plan$duration, 2, 3, opt = 1, cpoi = 1) par(mfrow=c(1,1))