Coursera Reproducible Research Assignment 2:exploring the U.S. National Oceanic and Atmospheric Administration’s (NOAA) storm database

This analysis aims at studying a database that tracks characteristics of major storms and weather events in the United States, including when and where they occur, as well as estimates of any fatalities, injuries, and property damage.The events in the database start in the year 1950 and end in November 2011. In the earlier years of the database there are generally fewer events recorded, most likely due to a lack of good records. More recent years should be considered more complete.The author therefore only has considered events from year 2007 for the analysis. The data analysis tries to answer questions about which types of events are most harmful with respect to population health and which types of events have the greatest economic consequences.