[Rd] errors in getconnection or scan
Duncan Murdoch
murdoch.duncan at gmail.com
Mon Dec 13 18:50:32 CET 2010
On 13/12/2010 12:36 PM, Arthur Charpentier wrote:
> I was wondering if there was a function like "does connection exists" ?
See ?showConnections.
> I am currently using loops to build up a database, and I have either
>
>> B = getConnection(localization)
> Error in getConnection(localization) : there is no connection -2147483648
> In addition: Warning message:
> In getConnection(localization) : NAs introduced by coercion
Where did the localization variable come from? getConnection is pretty
rarely used.
>
> or
>
>> B = scan(localization)
> Error in file(file, "r") : cannot open the connection
> In addition: Warning message:
> In file(file, "r") : cannot open: HTTP status was '404 Not Found'
>
> is there a way to test where localization is an html page, or not ? and to
> say that if localization does exist, then scan it ?
What's your definition of an html page? Testing for valid html is hard.
Duncan Murdoch
More information about the R-devel
mailing list