Attaching package: ‘dplyr’ The following objects are masked from ‘package:stats’: filter, lag The following objects are masked from ‘package:base’: intersect, setdiff, setequal, union Attaching package: ‘lubridate’ The following objects are masked from ‘package:base’: date, intersect, setdiff, union Listening on http://127.0.0.1:33672 Assuming "longitude" and "latitude" are longitude and latitude, respectively Execution halted