I'm trying to install this following map generation package but it's giving the following error
install.packages ("maptools", dep = TRUE) Installing package into 'C: /Users/rafael/Documents/R/win-library/3.0' (as 'lib' is unspecified) --- Please select a CRAN mirror for use in this session --- Warning: unable to access index for repository link Warning: unable to access index for repository link Missed warning messages: 1: In open.connection (with, "r"): could not connect to 'cran.r-project.org' on port 80. 2: package 'maptools' is not available (for R version 3.0.2)
Does anyone know how to solve it?