Module: Quby::TableBackend

Defined in:

lib/quby/table_backend/range_tree.rb

Overview

A lookup tree to find values by multiple arguments.

Example tree: Inhibitie:

male:
10...11:
  -Infinity...10: 39
  10...20: 42
11...12:
  -Infinity...10: 40
  10...20: : 43
female:
10...11: 38
...

with levels: ['scale', 'gender', 'age', 'raw', 'norm']

will allow a lookup like: lookup(10, raw: 5, scale: 'Inhibitie', gender: 'male')` => 39

Keys in the tree will be matched by hash lookup of the parameter value with the following exeptions: floats: can be found by integer as well strings: can be found by symbol as well. enumerables: will find the first key for which include?(param) returns true.

Defined Under Namespace

Classes: RangeTree