The weapons used for terrorism are extermely diverse ranging from chemicals to vehicles. It is important to understand what weapon is causing the most damage in order to reduce the fatalities in a big scale. The pie chart below displays the fatalities in percentage values for the year 2013. This plot was done implementing the gvisPieChart from googleVis library. The chart clearly shows that Explosives and Firearms cause the most damage.
## Warning: package 'ggplot2' was built under R version 3.1.3
To analyze if these two weapons caused significant damage also for the past eight years, GTD data from 2006 was downloaded and cleaned by the process of data munging in R. The R code created for this purpose is in the link called Related Files in the navigation bar.