Jacob, You might have a look at the vegan package. It might compute the Jaccard distance and it might have some other toolsa that you might be interested in. Dave
From: Flabbergaster <jlund...@gmail.com> To: r-help@r-project.org Date: 12/28/2010 08:26 AM Subject: [R] Jaccard dissimilarity matrix for PCA Sent by: r-help-boun...@r-project.org Hi I have a large dataset, containing a wide range of binary variables. I would like first of all to compute a jaccard matrix, then do a PCA on this matrix, so that I finally can do a hierarchical clustering on the principal components. My problem is, that I don't know how to compute the jaccard dissimilarity matrix in R? Which package to use, and so on... Can anybody help me? Alternatively I'm search for another way to explore the clusters present in my data. Another problem is, that I have cases with missing values on different variables. Jacob -- View this message in context: http://r.789695.n4.nabble.com/Jaccard-dissimilarity-matrix-for-PCA-tp3165982p3165982.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
