Extend ur_scrape_arwu() to scrape 501-1000
ur_scrape_arwu() function scrapes the Top 500 ranked universities. Following code run to verify this:
> # retrieve 2018 rankings > arwu_ranks_2018 <- ur_scrape_arwu(2018) > > # count rows > nrow(arwu_ranks_2018)  500
Could we have this scraper modified to optionally scrape the 501-1000 ranked universities?
This list is located on the second tab on http://www.shanghairanking.com/ARWU2018.html.