R help - Jul 2014 - How to process each element in 3 minute interval using a for loop in R?

Hi R-users,

This should be a simple question: How can I delay each loop process in some
minutes? The reason for this is I need to avoid too much traffic to get
longitudes and latitudes of 2000 addresses using google API.

I am searching for solutions with keywords like interval, minutes, delay,
but no directly relevant clues have come up yet.

Many thanks in advance.

Best,

Taka

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