I'm using R 3.1.2 with RStudio 0.98 on Windows 7 32 bits.
I want to download some weather forecasts files of the GFS model, to be found on an open ftp server, e.g.:
ftp://nomads.ncdc.noaa.gov/GFS/Grid4/201412/20141221/gfs_4_20141221_0000_000.grb2
The internet connection is done through a proxy (.Renviron is properly configured), and I'm basically using the donwload.file function for this purpose.
url <- file.path("ftp://nomads.ncdc.noaa.gov/GFS/Grid4/201412/20141221/gfs_4_20141221_0000_000.grb2")
download.file(url, destfile="temp.grb2", mode="wb")
Where I get the following error message:
trying URL 'ftp://nomads.ncdc.noaa.gov/GFS/Grid4/201412/20141221/gfs_4_20141221_0000_000.grb2'
using Synchronous WinInet calls
Error in download.file(url, destfile = "temp.grb2", mode = "wb", :
cannot open URL 'ftp://nomads.ncdc.noaa.gov/GFS/Grid4/201412/20141221/gfs_4_20141221_0000_000.grb2'
In addition: Warning message:
In download.file(url, destfile = "temp.grb2", mode = "wb", :
InternetOpenUrl failed: 'Operation timed out'
This message appears exactly 30 seconds after running those lines, and no issues appear when downloading a smaller file, such as 'ftp://nomads.ncdc.noaa.gov/GFS/Grid4/201412/20141221/gfs_4_20141221_0000_000.inv', so I assume it's a matter of timeout configuration.
Setting:
options(timeout=240) doesn't seem to work.
With another computer, using R 3.0.2 with RStudio 0.98 on Windows 8 64 bits, and without using proxy connection, it works perfect.
Any suggestions?
