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Dendrogram in R

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#1 rajdas



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Posted 20 March 2012 - 04:24 AM

How can I draw a dendrogram using my 01 scoring (in Excel) in "R" ?

#2 hobglobin


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Posted 20 March 2012 - 08:12 AM

there are many packages and options...first you should specify your question (e.g. type of clustering, what distance do you need (or other measures)) and then better ask in the R forums, or look for already finished discussions or prepared examples. There is a lot of help available and experts you can ask if you cannot advance on your own finally.

One must presume that long and short arguments contribute to the same end. - Epicurus
...except casandra's that did belong to the funniest, most interesting and imaginative (or over-imaginative?) ones, I suppose.

#3 Axolotl9250



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Posted 12 July 2012 - 03:53 PM

There's a good UseR! series (by Springer) book by Paradis called "Analysis of Phylogenetics & Evolution with R", which deals with drawing trees from matrices and other data forms. But I can't be more specific than that. As hobglobin says you need to specify the way you want the tree to be drawn; distances, parsimony, clustering or ML etc. If it's a 01 scoring in a matrix then is it a clustering? R packages featured in the book will do a UPGMA.

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