[R] question about hierclust {multiv}

Wolski wolski at molgen.mpg.de
Thu Jun 10 09:13:31 CEST 2004


I would convert the simmilarities into dissimilarities by myself.
Its quite easy.
For example to make a dissimilarity from correlation which is a simmilarity measures you can:
dcorr = 1 - cor

and dcorr will be a dissimilarity.
More general. Make the smallest value the largest and the largest the smallest. And ensure that the transformation is monotonical.


*********** REPLY SEPARATOR  ***********

On 6/10/2004 at 9:06 AM Xinan Yang wrote:

>>>my major is bioinformatics, and i'm trying to cluster ( agglomerate
>>>the closest pari of observations ) in R.
>>>i have already got my own similarities metric, but do not know how to
>>>clust it based on similarities instead of dissimilarities.
>>>since the help document of hierclust mentions the parameter "sim",
>>>which seems good to me, but it doesn't appear in the code of
>>>hierclust() function again? and no sample about it.  so could anybody
>>>please help me as author?
>>>thanks in advance
>>>xinan yang
>>>xinan at molgen.mpg.de
>>>R-help at stat.math.ethz.ch mailing list
>>>PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

Dipl. bio-chem. Eryk Witold Wolski    @    MPI-Moleculare Genetic   
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