Combination of the melt function in Hadley Wickham's reshape package and Shan Carter's Mr. Data Converter...You put in CSV, it spits out a melted JSON blob to use with D3
This work is supported by the National Institutes of Health's National Center for Advancing Translational Sciences, Grant Number U24TR002306. This work is
solely the responsibility of the creators and does not necessarily represent the official views of the National Institutes of Health.