Re: [R] Manually modifying an hclust dendrogram to remove singletons

Hi, Thanks for the replies - they have helped shaped my thinking and are starting to push me in a better direction. Maybe I should explain a little more about what I'm trying to achieve. I am analysing satellite data across the global ocean, and am interested in trying to classify areas of the oc

Re: [R] Manually modifying an hclust dendrogram to remove singletons

Hi all, Thanks for the replies - they have helped shaped my thinking and are starting to push me in a better direction. Maybe I should explain a little more about what I'm trying to achieve. I am analysing satellite data across the global ocean, and am interested in trying to classify areas of th

Re: [R] Manually modifying an hclust dendrogram to remove singletons

On Thu, May 24, 2012 at 9:31 AM, wrote: > Dear R-Help, > > I have a clustering problem with hclust that I hope someone can help > me with. Consider the classic hclust example: > >     hc <- hclust(dist(USArrests), "ave") >     plot(hc) > > I would like to cut the tree up in such a way so as to av

Re: [R] Manually modifying an hclust dendrogram to remove singletons

Can't put my finger on it but something about your idea rubs me the wrong way. Maybe it's that the tree depends on the hierarchical clustering algorithm and the choice on how to trim it should be based on something more defensible than "avoid singletons". In this example Hawaii is really different