Simple Bar Chart (GPL)

Figure 1. GPL for simple bar chart

SOURCE: s = userSource(id("Employeedata"))
DATA: jobcat=col(source(s), name("jobcat"), unit.category()) 
DATA: salary=col(source(s), name("salary")) 
SCALE: linear(dim(2), include(0)) 
GUIDE: axis(dim(2), label("Mean Salary")) 
GUIDE: axis(dim(1), label("Job Category")) 
ELEMENT: interval(position(summary.mean(jobcat*salary)))

Figure 2. Simple bar chart