FieldStats

object

A field's extent and distribution (numeric and time fields) or distinct values (text; bounded, by frequency), for seeding filter controls and the ramp's distribution. Time extents are ISO-8601 strings. On an aggregated (hex/grid) layer, value and count answer over the effective query — the same values classification sees.

• fieldstringrequired

• kindstringrequired

  One of numeric, time, text

• numericbooleanrequired

• minnumber or stringor null

  Number for numeric, ISO-8601 string for time.

• maxnumber or stringor null

  Number for numeric, ISO-8601 string for time.

• meannumberor null

  Arithmetic mean; numeric fields only.

• binsarray of integer

  Row counts over equal bins across [min, max] — the distribution histogram behind a range brush. Empty when the extent is missing or a single value.

• valuesarray of string

• truncatedboolean