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data_clusters
2006 May 09
1
visualisation of Self organising map
Hello R users,
I'm using SOM() to cluster a gene expression data set
the syntax i used was
dataGrid <- c(somgrid(xdim = 3, ydim = 3, topo = c("rectangular","hexagonal")))
dataClusters <- SOM(dataMatrix, grid = dataGrid)
plot(dataClusters)
it seems that this works just fine but the thing i can't figure out is
how to determine where each data point has been clustered.
any suggestions are welcome
thanks in advance
richard mendes