ivgen {mefa} | R Documentation |
Writes files in the format suitable for further analysis in the 'IndVal.exe' software by Dufrene and Legendre (1997).
ivgen(x, cl, k)
x |
a numeric vector. |
cl |
a tree object of class hclust . |
k |
an integer scalar defining the desired number of groups (partitions), used by cutree . |
Three text files are produced into the working directory. Screen displays info on what to type into the IndVal propts.
This functiona can be used for an external software, maybe a better choice to use the function duleg
in the package 'labdsv' of Dave Roberts.
Peter Solymos, Solymos.Peter@aotk.szie.hu, http://www.univet.hu/users/psolymos/personal/
Dufrene, M. and Legendre, P. 1997. Species assemblages and indicator species: the need for a flexible asymmetrical approach. Ecological Monographs 67, 345–366.
IndVal homepage (with errata to the atricle) at http://biodiversite.wallonie.be/outils/indval/home.html
x <- matrix(rpois(24,1),6,4) cl <- hclust(dist(x)) plot(cl) ivgen(x, cl, 3)