Figure 1. GPL for bubble plot
* Open sample file Employee Data.sav.
GGRAPH
/GRAPHDATASET NAME="graphdataset" VARIABLES=salbegin salary prevexp
/GRAPHSPEC SOURCE=INLINE.
BEGIN GPL
SOURCE: s=userSource(id("graphdataset"))
DATA: salbegin=col(source(s), name("salbegin"))
DATA: salary=col(source(s), name("salary"))
DATA: prevexp=col(source(s), name("prevexp"))
SCALE: linear(aesthetic(aesthetic.size),
aestheticMinimum(size."5px"), aestheticMaximum(size."35px"))
GUIDE: axis(dim(2), label("Current Salary"))
GUIDE: axis(dim(1), label("Beginning Salary"))
GUIDE: legend(aesthetic(aesthetic.size), label("Previous Experience (months)"))
ELEMENT: point(position(salbegin*salary), size(prevexp))
END GPL.
Figure 2. Bubble plot
