Part 1 of a two-part webinar series on integrating the statistical programming language R with Esri's ArcGIS for Desktop.
Cameron Plouffe of the Esri Canada Education and Research group covers several basic R programming concepts and manipulating data frames using Hadley Wickham's "dplyr" package, and then demonstrates how you can use the new R-ArcGIS bridge to interface directly to ArcGIS geodatabases within R.
Slide deck: http://slides.com/camplouffe/integrating-r-with-arcgis
Webinar materials: https://github.com/cplouffe/r-arcgis-webinar
Integrating R with ArcGIS (Part 2): https://www.youtube.com/watch?v=TNnCgQ-jG2I