topic Graphing data from a cluster analysis in Graphics Programming

Graphing data from a cluster analysis

crisgugiu — Wed, 25 Jan 2012 13:42:53 GMT

Hi everyone,

I am helping a friend conduct a cluster analysis. I'm new to this analysis and would like to know if there is any other way of displaying results other than a tree diagram. I performed the analysis on 194 cases and the resulting diagram was not something I could present to others or submit for publication. Specifically, the fontsize was tiny because it was squeezed to fit onto a single page. However, even if I print the tree diagram on two pages, it still does not look very professional. I am interested in learning more about how such data can be displayed. Snippets of code and a graph would really help me out a lot.

best,

Cristian

Graphing data from a cluster analysis

Jay54 — Wed, 25 Jan 2012 13:56:51 GMT

If you include your code with data, it would help us understand this use case. Also, please tell us which release of SAS you are using.

Graphing data from a cluster analysis

crisgugiu — Wed, 25 Jan 2012 20:46:04 GMT

Is there are way to attach a SAS data set?

Here is the SAS code.

ods graphics on;
proc cluster data=HCA_std method=WARD TRIM=10 NONORM k=10 ccc pseudo print=30 outtree=Tree ;
   var can:;
   id NationYR;
   copy FH Van Democ Elecsd Polity;
   format NationYR $12.;
run;
ods graphics off;

goptions vsize=10in hsize=10in htext=.5pct htitle=2pct ftext='Garamond' ;
title "Cluster Analysis of Country/Election Years";
axis1 order=(0 to 1 by 0.1) label = (height=2pct) ;
proc tree data=Tree out=Clusters(drop=CLUSNAME can:) nclusters=2 similar
haxis=axis1 VPAGES=2 horizontal ;
where _FREQ_ >-1;
height _rsq_;
copy FH Van Democ Elecsd Polity;
id NationYR;
run;