GPL: The Graphics Programming Language

SPSS implements the GPL programming language for graphics (GPL), as defined by Leland Wilkinson in his landmark book . When using the or Graphboard templates, you are in fact using a front-end to that language (you might have noticed - if you had a look at the commands the Chart Builder generated). GPL is a language capable to express in general terms all forms of statistical graphs.

To learn more about GPL, as implemented in SPSS, see:

Examples