>>>>> "Martin" == Martin Maechler <[EMAIL PROTECTED]> >>>>> on Mon, 14 Aug 2006 14:30:39 +0200 writes:
>>>>> "Chuck" == Chuck Cleland <[EMAIL PROTECTED]> >>>>> on Mon, 14 Aug 2006 04:53:55 -0400 writes: Chuck> Timothy Rye wrote: >>> I'm interested in clustering my data using the Gower >>> Similarity Coefficient, and I was wondering if R is >>> capable of using that metric >>> >>> Timothy Rye Chuck> RSiteSearch("Gower") points to a number of relevant Chuck> messages in the archives. It also reveals gdist() in Chuck> the mvpart package, vegdist() in the vegan package, Chuck> and dist.binary() in the ade4 package, which may do Chuck> what you want. Martin> The daisy() function from the package "cluster" Martin> (which is *recommended* hence part of every complete Martin> R installation) is also based on Gower's Martin> (dis)similarity coefficient. Martin> So you don't need to install a new package [But I Martin> need to add the word 'Gower' to a better place on Martin> daisy()'s help page ...] Hmm, actually, it's already there. And if you use help.search() smartly [I use lib.loc = <R system library> in order to not search in the more than 1000 CRAN and bioconductor packages we have installed], > help.search("Gower", agrep = FALSE, lib.loc = tail(.libPaths(), 1)) I get exactly the correct match >> Help files with alias or concept or title matching $,1rx(BGower$,1ry(B using >> regular expression matching: >> daisy(cluster) Dissimilarity Matrix Calculation >> Type 'help(FOO, package = PKG)' to inspect entry 'FOO(PKG) TITLE'. Martin Maechler
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