### Name: grob_XXX
### Title: Grob creation functons
### Aliases: grob_XXX grob_2density grob_abline grob_area grob_bar
###   grob_boxplot grob_contour grob_density grob_group grob_errorbar
###   grob_histogram grob_hline grob_jitter grob_line grob_path grob_point
###   grob_polygon grob_quantile grob_rect grob_ribbon grob_smooth
###   grob_text grob_tile grob_vline pre_bar pre_density pre_errorbar
###   pre_group pre_histogram pre_ribbon
### Keywords: internal

### ** Examples



