geo_tweet

Filter Twitter v.2 Academic Research's data within location and date

Given a file of tweets extrated from the new v.2 API, this function filters the exact geolocated ones according to a user specified location and radius together with a date.This allows to get precise event locations.

Obtain data in Python

The package twarc2 can be used in python in order to extract all tweets that match an specific query. The following code provides an example of this:

twarc2 search --archive "(#BLM OR #BlackLivesMatter) has:geo lang:en -is:retweet place_country:US" --start-time "2020-05-25" --end-time "2021-01-31" >output.json To obtain the full features we use the option flatten:

twarc2 flatten output.json output_flat.json

and export as .csv to import latter in R:

twarc2 csv output_flat.json blm_python.csv

geo_tweetsassumes that the input in data contains only the subsect of data with exact geolocation (column geo.coordinates.coordinates).

Example

dd<-geo_tweet(38.8977,-77.0365,1,blm_geo,"2020-06-01 00:00:00","2021-01-01 00:00:00")

This ouput stores the location only requisites in dd and both the location and data filtering in date_subset.