ArcGIS can be finicky. Model Builder even more so.
Taking advantage of compiled code in R has never been easier, but you still need to pay attention to syntax.
A few simple techniques can really make your R Markdown documents stand on their own.
R provides some simple tools for downloading files, unzipping archives and reading in data.
Here's one strategy for creating animated plots that uses both R and Matlab. I'll go over how to work with videos in Matlab and merge images for use as video frames.