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Return the class of the factorial object (ie. the kind of analysis performed)
whichFacto(res)
an object of class PCA, CA or MCA.
Simon Thuleau and Francois Husson
if (FALSE) { require(FactoMineR) data(decathlon) res.pca = PCA(decathlon, quanti.sup = c(11:12), quali.sup = c(13), graph = FALSE) whichFacto(res.pca) }
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