Fix interpolation of trailing NAs for each trip

UDST / urbanaccess

A tool for GTFS transit and OSM pedestrian network accessibility analysis by UrbanSim

https://udst.github.io/urbanaccess/index.html

GNU Affero General Public License v3.0

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Fix interpolation of trailing NAs for each trip #7

Closed pksohn closed 7 years ago

pksohn commented 7 years ago

Addresses #6. Adds a couple steps to the interpolator function to make sure interpolated values past the last valid departure time are not merged back in to the main DataFrame. Unit test is also modified with a new type of trip.