My first guess, after a quick glance, is that Google only lets you do a
limited number of lookups within some period of time.
-Don
--
Don MacQueen
Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062
On 7/27/15, 10:14 PM, "R-help on behalf of shreya ghosh"
<r-help-boun...@r-project.org on behalf of shreya....@gmail.com> wrote:
>Hi,
>I'm trying to do reversegeocoding on a large dataset. I'm using "RJSONIO"
>library and using Google map API to get the location of the given lat-lon
>in the dataset. After 100 or 150 successful displaying location
>information
>it is showing
> Warning message - "In readLines(con) : cannot open: HTTP status was '0
>(null)'"
>and Error : "Error in fromJSON(paste(readLines(con), collapse = "")) :
> error in evaluating the argument 'content' in selecting a method for
>function 'fromJSON': Error in readLines(con) : cannot open the connection"
>
>Please help me to solve the issue.
>
>location function is as follows :
>
>location<-function(latlng){
> latlngStr <- gsub(' ','%20', paste(latlng, collapse=","))
> library("RJSONIO") #Load Library
> #Open Connection
> connectStr <- paste('
>http://maps.google.com/maps/api/geocode/json?sensor=false&latlng=',latlngS
>tr,
>sep="")
> con <- url(connectStr)
> data.json <- fromJSON(paste(readLines(con), collapse=""))
> close(con)
>
> data.json <- unlist(data.json)
> if(data.json["status"]=="OK")
> address <- data.json["results.formatted_address"]
> print (address)
>}
>
>I'm using R version 3.2.1 and Ubuntu 14.10 OS.
>
>Thank you.
>
>
>
>--
>
>Shreya Ghosh
>
>*9007448845*
>
>-- The mind is not a vessel to be filled, but a fire to be kindled
>
> [[alternative HTML version deleted]]
>
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______________________________________________
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