Box & Whiskers plot in R from a .csv file.

bwplot.R

library("cvTools")
library('reshape2')

policy.all <- read.csv('data.csv', header = TRUE, sep = ',')

# > policy.all
#   iteration RandomForest Lasso Ridge
# 1         1         0.18  0.06  0.06
# 2         2         0.15  0.07  0.07
# 3         3         0.15 -0.04 -0.06
# 4         4         0.12  0.09  0.09
# 5         5         0.20  0.03  0.03

jpeg('bw-rfc.jpg')
policy.cv <- melt(policy.all[2:4])
bwplot(variable ~ value, data = policy.cv,
       xlab="Gini coefficient")
dev.off()