## Thursday, 22 March 2012

### Check URL existance with R

RCurl package provides utilities for HTTP and FTP connection. One particular functionality is checking if a given URL is accessible, implying existence, using url.exists. However some unfortunate Windows users may have difficulty to get its latest build from CRAN. Here is a simple function to check existence of URL by only using R base functionality;
   urlExists <- function(address) {
tryCatch {
}