ivgen {mefa}R Documentation

Write Files for IndVal

Description

Writes files in the format suitable for further analysis in the 'IndVal.exe' software by Dufrene and Legendre (1997).

Usage

ivgen(x, cl, k)

Arguments

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.

Value

Three text files are produced into the working directory. Screen displays info on what to type into the IndVal propts.

Note

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.

Author(s)

Peter Solymos, Solymos.Peter@aotk.szie.hu, http://www.univet.hu/users/psolymos/personal/

References

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

See Also

cutree, hclust

Examples

x <- matrix(rpois(24,1),6,4)
cl <- hclust(dist(x))
plot(cl)
ivgen(x, cl, 3)

[Package mefa version 1.1-2 Index]