Hi, I feel that it is not possible to use qualitative variables with madifa i.e. using a Hill and Smith analysis instead of a principal component analysis on the environmental table. Indeed, I receive the following error : "Error in eigen(W) : infinite or missing values in 'x'" whereas the same command line is ok with enfa. In madifa help, it is only written that the first argument must be a dudi object not a pca. Is a trick exist to use a dudi.hillsmith result instead of a dudi.pca as first argument in madifa ? Thanks,
Jeanne Vallet Postdoc in ecology Groupe ESA, 55 rue Rabelais, B.P. 30748, 49007 Angers cedex 01, France. mail : j.val...@groupe-esa.com -- View this message in context: http://r-sig-geo.2731867.n2.nabble.com/madifa-with-qualitative-variables-tp5769776p5769776.html Sent from the R-sig-geo mailing list archive at Nabble.com. _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
