One of Our GSoC 2016 projects being done by (Eric Hung) is converting plotting functionality from several existing packages to use the new plot.xts integrated to xts by . has merged the changes to the master branch of PerformanceAnalytics.
Please help us test!
The simplest way to install the latest versions is likely through devtools:
sessionInfo() should then report xts_0.10-0 and
Eric will be moving on to quantmod graphics now, with a goal of
harmonizing chart_Series and chartSeries to be the same code underneath,
and both using plot.xts, along with all the add* panel functions.