I am using the twitteR R package to search for tweets by keyword. The function searchTwitter() allows you to search with or without a location specified. If you specify a location it returns tweets within a radius, or else it returns all tweets with the keyword.
I have limited my search to just one or two days and I am searching all the locations globally where the keywords that I am interested in would be tweeting from but I get many more tweets with the general search (i.e. without location) than if I search by location and add up the tweets from all the cities around the world which are likely giving tweets. I was not expecting the same number exactly but I am way off.
Am I missing something with this function or is it not possible to get the location of some tweets?