GGplot2 is an R package created by Hadley Wickham in 2005. It can highly improve the quality and aesthetic of your graphs ! If you speak french, check
this really clear quick start page. More over R studio provides a really helpfull cheat sheet summarizing the main ggplot2 functions. I hope you will find
the graph you are looking for in the exemples below !If it is not the case, don’t forget to contribute by requesting or proposing a graph !
Looking for somethig else ? Try a search !