[R] help

[Sarah Goslee]

You can use the vector of integer cluster numbers with silhouette()
from the cluster package.

https://www.rdocumentation.org/packages/cluster/versions/2.1.0/topics/silhouette


But note that silhouette as an assessment metric makes roughly the
same assumptions that k-means does about the data structure, and may
not return useful results with other clustering methods.

Sarah

On Mon, Sep 9, 2019 at 12:01 PM Nicola Fiedler <nicolafiedler using gmx.de> wrote:
>
> Hi together,
>
> I’m new using R and have a question concerning the Silhouette coefficient. I’ve clustered very easy objects with Affinity Propagation.
> My data just has one numeric attribute.
>
> apres <- apcluster(negDistMat(r=2), data, details=TRUE)
> show(apres)
>
>
>
> This worked very well. To compare with other algorithms I want to know the Silhouette coefficient.
> The function I use for the other algorithms doesn’t work for AP (clvalid or fviz_nbclust).
> So my question is, how I can get the Silhouette coefficient for the clustering with AP?
>
> Thank you very much in advance for your help.
>
-- 
Sarah Goslee (she/her)
http://www.numberwrigtht.com