| ggalt-package | Extra Geoms, Stats and Coords for 'ggplot2' |
| coord_proj | Similar to 'coord_map' but uses the PROJ.4 library/package for projection transformation |
| geom_bkde | Display a smooth density estimate. |
| geom_bkde2d | Contours from a 2d density estimate. |
| geom_xspline | Connect control points/observations with an X-spline |
| ggalt | Extra Geoms, Stats and Coords for 'ggplot2' |
| stat_ash | Compute and display a univariate averaged shifted histogram (polynomial kernel) |
| stat_bkde | Display a smooth density estimate. |
| stat_bkde2d | Contours from a 2d density estimate. |
| stat_xspline | Connect control points/observations with an X-spline |