I want to identify those tweets containing URL in my twitter data set. For example, using the sign of "http://".
How to proceed it in R? for example the tweets texts are
"@RainxDog @twitpic Please HELP #OccupyWallStreet and RT this video: http://t.co/vjwNR7TC"
"@degamuna Please HELP #OccupyWallStreet and RT this video: http://t.co/vjwNR7TC"
You can use grep
if(length(grep("http://",data))>0){
data[grep("http://",data)]
}