[R] How to make a Cluster of Clusters

[Michael Bedward]

Hi Diego,

It depends on your what your research questions are.  You haven't told us :)

For example, if you wanted to know whether (a) the environmental
distance between lakes is correlated with spatial distance and (b) if
the relationship changes over time you might do a series of Mantel
tests. This would be working with your environmental and spatial
distance matrices directly, rather than indirectly as is the case with
dendrogram ultrametrics or ordination coordinates.

Michael


On 8 January 2011 00:02, Diego Pujoni <diegopujoni at gmail.com> wrote:
> Hi Michael,
>
> I agree with you and I will make this ordination. But I also want to
> check a spatial correlation of the variables, so I thought that
> comparing the dendrogram of the environmental variables with the
> dendrogram of the geographical distances of the lakes it will
> indicates if similar lakes are next to each other. But I have just one
> geographical coordinate for each lake, but 12 measures of
> environmental variables. How can I analyse this?
>
> Thank you very much for the attention
>
>
>    Diego PJ
>