Simple Bar Chart With Error Bars (GPL)

Figure 1. GPL for simple bar chart with error bars
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)))
ELEMENT: interval(position(region.confi.mean(jobcat*salary)),
                  shape(shape.ibeam), size(size.".4in"), color(color.black))
Figure 2. Simple bar chart with error bars
Simple bar chart with error bars