Added a example for using Datasets::TLC::FHVTrip class

Author: otegami

example/tlc-fhv-trip.rb

@@ -0,0 +1,27 @@
+#!/usr/bin/env ruby
+
+require "datasets-parquet"
+
+trips = Datasets::TLC::FHVTrip.new(year: 2022, month: 1)
+
+p trips.to_arrow
+#<Arrow::Table:0x11441f108 ptr=0x10775f960>
+# dispatching_base_num              pickup_datetime                dropOff_datetime       PUlocationID    DOlocationIDSR_Flag Affiliated_base_number
+# 0 B00009                  2022-01-01T09:31:00+09:00       2022-01-01T10:05:00+09:00             (null)          (null) (null) B00009
+# 1 B00009                  2022-01-01T09:37:00+09:00       2022-01-01T10:05:00+09:00             (null)          (null) (null) B00009
+# ...
+
+trips.first(2).each do |trip|
+  p [
+      trip.dispatching_base_num,
+      trip.pickup_datetime,
+      trip.dropoff_datetime,
+      trip.pu_location_id,
+      trip.do_location_id,
+      trip.sr_flag?,
+      trip.affiliated_base_number
+  ]
+end
+# ["B00009", 2022-01-01 09:31:00 +0900, 2022-01-01 10:05:00 +0900, nil, nil, false, "B00009"]
+# ["B00009", 2022-01-01 09:37:00 +0900, 2022-01-01 10:05:00 +0900, nil, nil, false, "B00009"]
+# ...