The grammar of graphics as implemented in the 'ggplot2' package has been successful in providing a powerful API for creating static visualisation. In order to extend the API for animated graphics this package provides a completely new set of grammar, fully compatible with 'ggplot2' for specifying transitions and animations in a flexible and extensible way.
geom_smooth(). Both ribbon and line will now fade.
shadow_mark()where future shadows were drawn above the main frame data.
view_follownow works with transformed scales.