On 8/24/2017 7:30 AM, Bryan Housel wrote:
Hi Janet,
The OSM API can give details about when a user created their account,
and how many changesets they have contributed.
https://wiki.openstreetmap.org/wiki/API_v0.6#Details_of_a_user
While the API will tell you how many changesets a user is up to right
now, it’s not easy to know how new the user was at the time they made
an edit. For this reason, the next version of iD will also include
the user's `changesets_count` as a tag on each changeset, to make this
analysis a bit easier.
You should not be using the OSM API for this type of analysis. Instead,
the best way to do it is with the changeset dump files. This includes
all the changeset data, so you can tell when a user's first changeset
was, how many changesets they had at any particular time, and all the
details on a changeset.
Generally I load the changeset data into a PostgreSQL database with
ChangesetMD, but that's mainly because Postgres works well for the type
of analysis I do.
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