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Table descriptions

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meta_tables, page 2 of 2
nameTEXTtitleTEXTdescriptionTEXT
conformal_binsConformal interval tableSplit-conformal offsets per calibration bin: global symmetric, Mondrian by predicted decile, and Mondrian by pickup borough x predicted bin, at 80%, 90% and 95%.
conformal_coverageConformal coverageEmpirical coverage of each conformal method on held-out trips, overall and by bin, borough and hour, with mean interval width (lower end clipped at 0) and a 95% interval from a bootstrap that resamples whole test days (B = 2,000, seed 20190101).
conformal_coverage_dailyConformal coverage per test dayTrips and covered trips per test day for each scheme, method and level: the units the coverage bootstrap resamples.
effects_dailyDaily duration indexPer day: trips, mean minutes and the composition-adjusted duration index (mean log of minutes / route-hour median), with weather, events and collisions.
effects_borough_dailyBorough-day duration indexPer pickup borough and day: trips, the duration index, permitted events and collisions in that borough.
dq_rulesData-quality rulesEvery 2021 cleaning rule with its reason, rows removed in sequence, rows failing it on its own and rows failing only it.
dq_rule_valuesOffending values per ruleThe most common values each cleaning rule removes.
dq_missingMissing values by source fileMissing values per column in each monthly TLC file of 2019.
dq_januaryJanuary missing surchargeRows and missing congestion surcharges per pickup day in the January 2019 file.
dq_residual_checksResidual plausibility checksImplausible records the 2021 rules let through, counted on the final analysis dataset by vendor (reported, not removed).
dq_surcharge_by_monthCongestion surcharge conventionPer month and vendor: trips whose total leaves out the recorded congestion surcharge.