OECD Material productivity data analysis 2 - Using R ggplot2 for making some graphs.

Photo by Mateusz Klein on Unsplash www.crosshyou.info This post is following of the above post.Let's make some graphs to get big picuture of the data. Fisrstly, I make histograms for each variables. Let's start with NONNRGMAT TOTMAT before making gdp histogram, I load gridExtra package to arrange t…