Wednesday, March 23, 2016

New versions of climatic water deficit tools and scripts

Miranda Redmond from our lab has created an R script for running PRISM climate data to generate climatic water deficit data for discrete sites. The functionality is similar to our existing spreadsheet version of the Climatic Water Deficit Toolbox for ArcGIS in that it runs on discrete sites rather than raster cells. You can view all three versions of the tools HERE as well as a whole variety of other tools. We anticipate that there will be improvements to all versions of the climatic water deficit tools in the near future so stay tuned!

Friday, March 18, 2016

An under-appreciated method for partitioning data into training and test

Perhaps one of the most under-appreciated tools in ArcGIS is subset features. While there are numerous examples of how to generate random points, which can then be sorted and used to generate fields for subsetting your data why not just do it directly? The subset features tool in the Geostatistical Analyst toolbox does this. Another alternative to check out is the Marine Geospatial Ecology Tools. MGET has numerous tools for doing modeling and is a great resource for quickly running models and bring the results back into ArcMap for display.