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

0 votes

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"
Nov 20, 2018 in Data Analytics by Ali
• 10,450 points
208 views

1 answer to this question.

0 votes

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)
answered Nov 20, 2018 by Maverick
• 10,040 points

Related Questions In Data Analytics

0 votes
1 answer

Error: could not find function - R Programming

This error usually occurs when a package ...READ MORE

answered Oct 29, 2018 in Data Analytics by Maverick
• 10,040 points
297 views
0 votes
1 answer
0 votes
1 answer

Error saying "R Error: package ‘lme4’ required by ‘pbkrtest’ could not be found"

Windows 7, revo R 3.2.3 construct a directory ...READ MORE

answered Nov 9, 2018 in Data Analytics by Maverick
• 10,040 points
24 views
0 votes
1 answer

Error saying "could not find function "read_html"" when trying to use read_html function

Hey @Ali, Execute the following two commands: install.packages(“ ...READ MORE

answered Nov 20, 2018 in Data Analytics by Maverick
• 10,040 points
143 views
0 votes
1 answer

Error saying "could not find function "shinyUI"" in shiny R

Its a small spelling mistake that you've ...READ MORE

answered Nov 28, 2018 in Data Analytics by Maverick
• 10,040 points
311 views
0 votes
1 answer

Error saying "could not find function dashboardPage" in shiny R

Include this line in the code: Library(shinydashboard) READ MORE

answered Nov 28, 2018 in Data Analytics by Maverick
• 10,040 points
169 views