== How do I do a multiple line plot of cluster profiles? ==

Suppose we gave four columns of factor scores, f1av to f4av, which we wish plot for each of two clusters, cluster membership forming a sixth column, as in the table below. [attachment:line.doc A bit of editing in the chart editor yields this.]

||||||||||||<20% style="VERTICAL-ALIGN: top; TEXT-ALIGN: center">'''F1av''' ||'''F2av''' || '''F3av''' ||'''F4av''' || '''clus''' ||
||||||||||||<20% style="VERTICAL-ALIGN: top; TEXT-ALIGN: center"> 1 || 2 || 2 || 2 || 1 ||
||||||||||||<20% style="VERTICAL-ALIGN: top; TEXT-ALIGN: center"> 2 || 5 || 1 || 4 || 1 ||
||||||||||||<20% style="VERTICAL-ALIGN: top; TEXT-ALIGN: center"> 3 || 4 || 3 || 5 || 2 ||
||||||||||||<20% style="VERTICAL-ALIGN: top; TEXT-ALIGN: center"> 2 || 3 || 4 || 6 || 2 ||


A multiple line plot can be drawn using the syntax below.
{{{
VARSTOCASES                                          /MAKE score FROM f1av TO f4av.                        
LIST.

compute facno=$casenum.
compute facno=mod(facno,4).
if(facno eq 0) facno=4.
exe.


GRAPH
  /title = 'cluster profiles of four factors'
  /LINE(MULTIPLE)MEAN(score) BY facno BY clus
  /MISSING=REPORT.
}}}