Hi,
I often scan web pages directly into R using
scan('http://etc...','')
however this gives an error if the page/url doesn't exist, or the connection
to it is not available.
Is it possible to still use scan but have R return something other than an
error (which crashes code)
when the page or the connection isn't available.
Cheers
John Haynes
Error when scan()ning dead URL's
2 messages · Jonathan Croft, Peter Dalgaard
"Jonathan Croft" <OG1092 at hotmail.com> writes:
I often scan web pages directly into R using
scan('http://etc...','')
however this gives an error if the page/url doesn't exist, or the connection
to it is not available.
Is it possible to still use scan but have R return something other than an
error (which crashes code)
when the page or the connection isn't available.
Can't you just wrap it in a try() construct?
O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907