In alankjackson/ggeocode: Access Various Online Geocoding Services

knitr::opts_chunk$set(echo = TRUE)

Services to access

Google

Census Bureau

Mapquest

https://developer.mapquest.com/documentation/open/geocoding-api/

LocationIQ

https://locationiq.com/

Open Cage (Nominatum, Two Fishes, Data Science Toolkit)

https://opencagedata.com/ 1 request per second 2500 requests per day use opencage package here?

Here

https://developer.here.com

250K queries per month https://discover.search.hereapi.com/v1/geocode?apikey=key&q=1311+Tulane+St%2C+77008 parcel-centered locations

Options to support

count queries against limits

store api keys securely so GIT won't see them

filter and compare results

• compare results from different services

structure of a query

Rate limits - will be set to minimum for each service

Multiple queries - hand over a tibble

Build the query

- convert address range to a semi-random address from 1-50

Selecting "correct" answer.

• Look at distances between answers, if small combine
• Look at completeness of answer, most complete wins
• Use returned ranking or error estimate to help decide
• Option to return best or many answers

alankjackson/ggeocode documentation built on March 16, 2020, 6:09 a.m.