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•  package root

  Definition Classes

  root

•  package molecule

  Definition Classes

  root

•  package boilerplate

  Definition Classes

  molecule

•  package api

  Definition Classes

  boilerplate

•  trait KeywordsStable extends AnyRef

  Keywords to mark aggregate expressions on and unifications of attributes.

  Keywords to mark aggregate expressions on and unifications of attributes.

  // Aggregates on any attribute type
  Person.age(count).get.map(_.head ==> 3)         // count of asserted `age` attribute values
  Person.age(countDistinct).get.map(_.head ==> 3) // count of asserted distinct `age` attribute values
  Person.age(max).get.map(_.head ==> 38)          // maximum `age` value (using `compare`)
  Person.age(min).get.map(_.head ==> 5)           // maximum `age` value (using `compare`)
  Person.age(rand).get.map(_.head ==> 25)         // single random `age` value
  Person.age(sample).get.map(_.head ==> 27)       // single sample `age` value (when single value, same as random)
  
  // Aggregates on any attribute type, returning multiple values
  Person.age(distinct).get.map(_.head ==> Vector(5, 7, 38)) // distinct `age` values
  Person.age(max(2)).get.map(_.head ==> Vector(38, 7))      // 2 maximum `age` values
  Person.age(min(2)).get.map(_.head ==> Vector(5, 7))       // 2 minimum `age` values
  Person.age(rand(2)).get.map(_.head ==> Stream(5, ?))      // 2 random `age` values (values can re-occur)
  Person.age(sample(2)).get.map(_.head ==> Vector(7, 38))   // 2 sample `age` values
  
  // Aggregates on number attributes
  Person.age(sum).get.map(_.head ==> 50)                  // sum of all `age` numbers
  Person.age(avg).get.map(_.head ==> 16.66666667)         // average of all `age` numbers
  Person.age(median).get.map(_.head ==> 7)                // median of all `age` numbers
  Person.age(stddev).get.map(_.head ==> 15.107025591499)  // standard deviation of all `age` numbers
  Person.age(variance).get.map(_.head ==> 228.2222222222) // variance of all `age` numbers

  Definition Classes

  api

• AggrCoalesce
• AggrInt
• AggrKw
• Kw
• avg
• bi
• count
• countDistinct
• distinct
• max
• maxs
• median
• min
• mins
• rand
• rands
• sample
• samples
• stddev
• sum
• unify
• v1
• variance

molecule.boilerplate.api.KeywordsStable

countDistinct 