R XML Parse for a web address

Question

I am trying to download weather data, similar to the question asked here: How to parse XML to R data frame but when I run the first line in the example, I get \"Error: 1: fa

Answer 1

I downloaded this url to a text file. After that, I get the content of the file and parse it to XML data. Here is my code:

rm(list=ls())
require(XML)
require(xml2)
require(httr)

url <- "http://forecast.weather.gov/MapClick.php?lat=29.803&lon=-82.411&FcstType=digitalDWML"

download.file(url=url,"url.txt" )
xmlParse(url)
data <- xmlParse("url.txt")

xml_data <- xmlToList(data)

location <- as.list(xml_data[["data"]][["location"]][["point"]])

start_time <- unlist(xml_data[["data"]][["time-layout"]][
    names(xml_data[["data"]][["time-layout"]]) == "start-valid-time"])