Plots

knitr::opts_chunk$set(echo =FALSE,comment = FALSE)

FALSE Warning: package 'dplyr' was built under R version 3.4.2

FALSE 
FALSE Attaching package: 'dplyr'

FALSE The following objects are masked from 'package:stats':
FALSE 
FALSE     filter, lag

FALSE The following objects are masked from 'package:base':
FALSE 
FALSE     intersect, setdiff, setequal, union

FALSE Warning: package 'ggthemes' was built under R version 3.4.2