Loop for Reverse Geocoding in R

Question

I am trying to reverse geocode a large data-set (around 100k). I used the revgeocode function from the package ggmap. I got the result for 1 entry<

Answer 1

I have had a similar problem for integrating the API key. Basically it is a matter of integrating the API key in the URL that R calls. If this doesn't help you, you need to change the core code (look it up on Github) to allow for an argument calling a key.