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One of the most popular web pages about Covid-19 is the worldometers which provides a detailed report about Coronavirus cases by country. Today, we will show how we can use R to Web Scrape the summary table of the site.
library(tidyverse) library(rvest) url <- "https://www.worldometers.info/coronavirus/" my_table<-url%>%read_html()%>%html_table()%>%.[[1]] # There are some "+" symbols and the "," # for the thousand separators that we wan to remove them my_table[]<-lapply(my_table, function(x) (gsub("\\,|\\+", "", (x)))) # convert all but the first and last column to numeric my_table[,c(2:12)] <- sapply(my_table[c(2:12)],as.numeric)
Since we got the data and we cleaned them, we can provide some statistics like:
Q: Which are the top 10 countries in Deaths per 1M Population?
my_table%>%arrange(-`Deaths/1M pop`)%>% select(`Country,Other`,`Deaths/1M pop`)%>% head(10) Country,Other Deaths/1M pop 1 San Marino 1032 2 Andorra 375 3 Spain 363 4 Italy 322 5 Belgium 311 6 France 212 7 Sint Maarten 210 8 Netherlands 160 9 UK 156 10 Switzerland 126
Enjoy your analysis!
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