US Storm Data Explorer

Sources

• The dataset is at: https://d396qusza40orc.cloudfront.net/repdata%2Fdata%2FStormData.csv.bz2

• The Source code is at: https://github.com/deniswsrosa/coursera-data-products-assignment

• The Source code is at: https://github.com/deniswsrosa/coursera-data-products-assignment

• The running app is available at: https://deniswsrosa.shinyapps.io/coursera-data-products-assignment/

The dataset are related to the storm events in the USA from 1950 to 2011, through the shiny app we can explore all storms filtering by the year and the type of occurrences.

Some examples of occurrences are avalanche:

• blizzard / winter storm
• coastal flood or erosion / tide
• coastal storm
• cold and windchill

library(datasets)
library(data.table)
library(dplyr)
dt <- fread('data/events.agg.csv') %>% mutate(EVTYPE = tolower(EVTYPE))

summary(dt)

##       YEAR         STATE              EVTYPE              COUNT        
##  Min.   :1950   Length:17614       Length:17614       Min.   :   1.00  
##  1st Qu.:1987   Class :character   Class :character   1st Qu.:   4.00  
##  Median :1999   Mode  :character   Mode  :character   Median :  12.00  
##  Mean   :1994                                         Mean   :  50.13  
##  3rd Qu.:2005                                         3rd Qu.:  38.00  
##  Max.   :2011                                         Max.   :1794.00  
##    FATALITIES          INJURIES           PROPDMG        
##  Min.   :  0.0000   Min.   :   0.000   Min.   :    0.00  
##  1st Qu.:  0.0000   1st Qu.:   0.000   1st Qu.:    0.00  
##  Median :  0.0000   Median :   0.000   Median :    0.01  
##  Mean   :  0.8422   Mean   :   7.917   Mean   :   17.58  
##  3rd Qu.:  0.0000   3rd Qu.:   1.000   3rd Qu.:    0.89  
##  Max.   :626.0000   Max.   :6110.000   Max.   :31734.50  
##     CROPDMG        
##  Min.   :   0.000  
##  1st Qu.:   0.000  
##  Median :   0.000  
##  Mean   :   2.746  
##  3rd Qu.:   0.000  
##  Max.   :5000.050