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I'm performing a Hierarchical Clustering Analysis using FactomineR on an MCA. All runs perfectly well.

I have put some supplementary individuals in my MCA. But I want to know in which clusters they will be. For the moment I only have the results on the active individuals (with res.hcpc$data.clust or res.hcpc$call$X)

Do you know how it could be possible to know in which cluster all of the supplementary individuals are ?

Thank you

Thomas Vroylandt
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1 Answers1

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To my knowledge, there is no equivalent of supplementary individuals in clustering. However, you can perform the clustering on the coordinates of both active and supplementary rows, like this (assuming res.mca holds your MCA object)

r <- rbind(res.mca$ind$coord,
           res.mca$ind.sup$coord)
res.hclust <- hclust(dist(r),method="ward.D")
scoa
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  • I have a similar question its related to this https://stackoverflow.com/questions/72958698/adding-group-information-to-3d-plot-in-factoextra is there a simple way of plotting? – PesKchan Jul 16 '22 at 05:26