frequency_table - ObjectVision/GeoDMS GitHub Wiki

Aggregation functions frequency_table

syntax

  • frequency_table(a, relation)

definition

description

applies to

  • attribute a with string value type.
  • relation with value type of the group CanBeDomainUnit

conditions

since version

example

attribute<string> freq_city_name (Region) := frequency_table(City/name, City/Region_rel);

see also

GeoDMS ©Object Vision BV. Source code distributed under GNU GPL-3. Documentation distributed under CC BY-SA 4.0.

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