ArcGIS and NodeXL: Longitude/Latitude, Locations, and Time Zones

Sep 15, 2014 at 10:35 PM

I'm working on an ArcGIS project for school , wanting to use data imported from twitter. I noted that there is a (1) Longitude and Latitude columns on the Edges worksheet; and (2) Locations and Time Zones on the Vertices worksheet.

Can you clarify what each represents? (a) the location entered via the twitter profile, (b) the physical location where the person is doing the tweeting; or (c) something else.

I also welcome any advice for those who have used ArcGIS with NodeXL.

Thank you for your assistance.

Sep 16, 2014 at 12:17 AM
Hello! Thank you for the interest in NodeXL!

NodeXL can report data about Twitter users. Twitter provides a range of metadata elements like Latitude, longitude, "location", and Time Zone.

Longitude and Latitude are present in a small minority of Tweets. When present we report them in the NodeXL workbook.

Location is a (sometimes) user provided text self description that often is not canonical in any way (i.e. "location: Here, Earth, etc..").

Time zone is the offset from GMT-0 in seconds.

None of these data elements is guaranteed to be populated or accurate.