Director of R&D Xan Gregg leads development at JMP for data visualization, data preparation and scripting. He created Graph Builder, the primary graphing platform in JMP, and leads its continued development. Graph Builder is JMP's drag-and-drop interactive graph creation and data exploration tool, allowing users to effectively visualize, explore and describe their data.

In 2006, Xan won first place in a world-wide data visualization competition and since then has been active in the online data visualization community. He invented the packed bars chart type for high cardinality Pareto distributed data and makes all kinds of graphs that he shares on Twitter @xangregg, in his personal blog site, Raw Data Studies, and as a regular blogger in the JMP Community.