[R] a question about clustering

[David L Carlson]

If you know what the groups are, why do you want to use cluster analysis?
You haven't told us what the goal of your analysis is. If it is to find
combinations of the variables A:F that will predict to what group an object
belongs, you probably want discriminant analysis. If you are trying to find
groups within the known groups, you could cluster the groups separately.

----------------------------------------------
David L Carlson
Associate Professor of Anthropology
Texas A&M University
College Station, TX 77843-4352

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of JiangMei
> Sent: Wednesday, April 03, 2013 5:43 PM
> To: r-help at r-project.org
> Subject: [R] a question about clustering
> 
> Hi all. Sorry to bother you.
> 
> I have a table like the following
>        A B C D E F
> G1  0  1 1  0 1 1
> G2  0  1 1  0 1 1
> G3  0  0  0 0 0 1
> H1  1  1  1 1 1 1
> H2  1  0  1 1 0 1
> H3  1  0  1 1 0 1
> 
> I already know G1, G2 and G3 belong to the same group and H1, H2 and H3
> belong to the other group. I want to cluster A, B, C, D, E and F. It
> seems that I can't input the group information of G1-H3 into the
> 'hclust' function. Are there any other cluster functions into which I
> could input the group information of G1-H3?
> 
> Thanks very much! Any help will be greatly appreciated.
> 
> Best regards
> 
> 	[[alternative HTML version deleted]]
> 
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