library(ggplot2) # beautiful graphs

library(ggthemes) # nice themes for ggplot2

library(cowplot) # arrrange graphs

library(pander) # nice tables

How to Choose a Chart

Choosing the right chart to represent your data can be a daunting process. I believe that a starting point for this thinking is some basic statistical thinking about the type of variables that you have. At the broadest level, variables may be conceptualized as categorical variables, or continuous variables.