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Coverage

56,681 of 56,681 columns decided — 100.0% · 12,642 bound (22.3%) · 0 still unread

Bound: 12,642; 22.3%; a concept was found and asserted for the column.
Refused: 32,953; 58.1%; the column was read and no concept fits. A verdict, not a gap.
Insufficient: 11,086; 19.6%; read, but the evidence did not settle it.
Unanalysed: 0; 0.0%; nobody has read this column yet.

56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 12, 2026, 1:38 PM

Where the unread columns are

3,026 datasets, 56,681 catalogued fields, 0 of them still unread. Every band below is a share of that, worst first. Open one to see its datasets.

2016 Yellow Taxi Trip Data

uacg-pexx

← What we have understood · Dataset page

Fields catalogued

Understood

Checked, no match

Nobody has looked

Every field decided — Every field carries a verdict — which does not mean every field is understood.

Every field in this dataset

Covered and uncovered alike, in the order the publisher lists them. A field with no verdict is one nobody has looked at yet.

Field	Type	What we know	Meaning	How it was decided	Shared term
pickup_longitude	Number	Not enough to tell	—	value_profile	—
pickup_latitude	Number	Not enough to tell	—	value_profile	—
vendorid VendorID	Number	Checked, no match	—	value_domain_read top[5]={2×10227431; 1×8879600; 3×64508; 4×61267; 5×959}	—
ratecodeid RatecodeID	Number	Checked, no match	—	value_domain_read top[5]={2×10227431; 1×8879600; 3×64508; 4×61267; 5×959}	—
mta_tax	Number	Not enough to tell	—	value_profile	—
pulocationid PULocationID	Text	Not enough to tell	—	value_profile	—
trip_distance	Number	Not enough to tell	—	value_profile	—
dolocationid DOLocationID	Text	Not enough to tell	—	value_profile	—
extra	Number	Not enough to tell	—	value_profile	—
tpep_dropoff_datetime	Calendar date	Not enough to tell	—	value_profile	—
tpep_pickup_datetime	Calendar date	Checked, no match	—	value_domain_read card=3 nonnull=131165043 null=0 smallest=1 largest=3 top[3]={2×70074613; 1×61084518; 3×5912}	—
passenger_count	Number	Not enough to tell	—	value_profile	—
payment_type	Number	Checked, no match	—	value_domain_read top[5]={2×10227431; 1×8879600; 3×64508; 4×61267; 5×959}	—
tolls_amount	Number	Not enough to tell	—	value_profile	—
store_and_fwd_flag	Text	Checked, no match	—	value_domain_read top[2]={N×19113718; Y×120047}	—
tip_amount	Number	Not enough to tell	—	value_profile	—
dropoff_longitude	Number	Not enough to tell	—	value_profile	—
improvement_surcharge	Number	Not enough to tell	—	value_profile	—
fare_amount	Number	Not enough to tell	—	value_profile	—
dropoff_latitude	Number	Not enough to tell	—	value_profile	—
total_amount	Number	Not enough to tell	—	value_profile	—