Error saying Error in map df 1 function i could not find function map df in R

Question

I have the following code wrt web scraping using R

url_base <- "https://cran.r-project.org/web/packages/available_packages_by_name.html"
map_df(1:100, function(i){
                page <- read_html(sprintf(url_base,i))
                data.frame(IssueID = html_text(html_nodes(page,"h1")),
                       heading = html_text(html_nodes(page,"td")),
                       description = html_text(html_nodes(page,"td")))
}) -> packages

But I end up with the following error, idk why?

Error in map_df(1, function(i) { : could not find function "map_df"

Answer 1

Make sure you’ve installed the package purr and in case you’ve already installed it and still facing the same error then load that into the library using the following command

library(purr)