update links to ggplot tutorials

Pakillo · Sep 17, 2018 · 2dfac40 · 2dfac40
1 parent df3bdb8
commit 2dfac40
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/ggplot_intro.Rmd b/ggplot_intro.Rmd
@@ -156,10 +156,10 @@ Source: https://github.com/jennybc/ggplot2-tutorial
 - [ggplot2 book](https://github.com/hadley/ggplot2-book) 
 - [R graphics cookbook](http://shop.oreilly.com/product/0636920023135.do) and [Cookbook for R](http://www.cookbook-r.com/Graphs/)  
 - [Beautiful plotting in R: A ggplot2 cheatsheet](http://zevross.com/blog/2014/08/04/beautiful-plotting-in-r-a-ggplot2-cheatsheet-3/)  
-- [Introduction to ggplot2](http://opr.princeton.edu/workshops/201401/ggplot2Jan2014DawnKoffman.pdf) 
-- [Tutorial: ggplot2](http://www.ceb-institute.org/bbs/wp-content/uploads/2011/09/handout_ggplot2.pdf)  
+- [Introduction to ggplot2](https://opr.princeton.edu/workshops/Downloads/2015Jan_ggplot2Koffman.pdf) 
+- [Tutorial: ggplot2](http://bbs.ceb-institute.org/wp-content/uploads/2011/09/handout_ggplot2.pdf)  
 - [How to format plots for publication using ggplot2](http://www.noamross.net/blog/2013/11/20/formatting-plots-for-pubs.html)  
-- [Visualising data with ggplot2](http://handsondatascience.com/GGPlot2O.pdf) 
+- [Visualising data with ggplot2](https://onepager.togaware.com/GGPlot2O.pdf) 
 - [Data Visualization with R and ggplot2](https://github.com/pablobarbera/Rdataviz)  
 - [ggplot2 tutorial](https://github.com/jennybc/ggplot2-tutorial)  
 - [Data visualisation chapter in R for Data Science](http://r4ds.had.co.nz/data-visualisation.html)