[R] Clustering analysis with ordination plots

[Uwe Ligges]

On 30.04.2012 18:44, borinot wrote:
> Hello to all,
>
> I'm new to R so I have a lot of problems with it, but I'll only ask the main
> one.
>
> I have clustered an environmental matrix

We do not know what that is. Where is the example data? See the posting 
guide.



> with 2 different methods,

Which? Where is the reproducible code? See the posting guide.


> and I'd
> like to plot them in a PCA

PCA is a method for reduction of dimensions. Frequently, if reduction 
works nicely, you can find clusters when plotting the first few PCs. But 
"plot them [clusters] in a PCA" is semantically invalid.

> and a db-RDA.

What is a db-RDA?

> I mean, I want see these clusters
> in the plots like points of differents colours, together with the rest
> information of the plot, but I don't know how to do this.

Tells us how you clustered the data and how you visualized it so far and 
we may be able to show you how to go ahead.


> I've checked a lot of bibliography and forums, and I haven't found the
> solution... it can't be so hard!
>
> Well, thanks in advance! :)

But really, read the posting guide in advance of follow up questions: It 
helps to improve the way you ask questions and hence you will probably 
get more useful answers.

Uwe Ligges


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