Data is based on daily logs from RStudio's CRAN mirror and commences from the first full week in early November 2012. The growth in
volume will be impacted by increased RStudio usage and may not reflect total CRAN activity
Some packages will be downloaded as dependencies
There are strange weekly variatons which I have yet to investigate
The R package rCharts which enables access to Highcharts amongst many similar JS libraries is being developed by Ramnath Vaidyanathan and
Thomas Reinholdsson. They have both provided invaluable assistance in creating this app.