*ggplotify package:
https://cran.r-project.org/web/packages/ggplotify/vignettes/ggplotify.html
*base2grob package:
https://cran.r-project.org/web/packages/base2grob/vignettes/base2grob.html
*ggplotify package:
https://cran.r-project.org/web/packages/ggplotify/vignettes/ggplotify.html
*base2grob package:
https://cran.r-project.org/web/packages/base2grob/vignettes/base2grob.html
R
package
plot
function
ggplot2
]