Most of my projects are hosted at

Software developed in the Keitt Lab:

  • odeintr, ODE solvers compiled on-demand
  • rgdal2, a much improved version of rgdal (still in progress)
  • rpg, highly convenient connection between R and PostgreSQL (a relational database system)
  • mvcwt, an R package for wavelet analysis of multivariate time series. See this paper. Now available on CRAN.
  • rgdal, which enables GIS applications in the R statistical computing environment (Number 62 of top 100 downloaded packages.)
  • trifield, an R package for plotting ternary heatmaps and contours
  • meshpoly, a utility for generating triangular meshes
  • postgraph, Boost Graph Library algorithms in the PostgreSQL backend
  • I wrote the original rpgsql (no longer maintained; the name "rpgsql" has been reused on CRAN for another unrelated package)
  • I was an early contributor to the R DBI initiative
  • I implemented a very fast fuzzy string matching algorithm in PostgreSQL (static allocation gives an order of magnitude improvement in speed)
  • Former student Naiara Pinto wrote a landscape analysis package called LORACS.

Software we use (and contributed to in some cases), but did not write:

University-licensed software

I am the point-person in the College of Natural Science for the UT ESRI site license. A full suite of GIS tools, including ArcGIS, is available to all faculty labs in the College of Natural Sciences. Contact me if you would like to obtain installation media.

Runners Point