Average
Keywords: uk.ac.bbk.dcs.automed.qproc.functions.Average,Average class

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## uk.ac.bbk.dcs.automed.qproc.functions
Class Average

    java.lang.Object
      |
      +--uk.ac.bbk.dcs.automed.qproc.functions.Average

All Implemented Interfaces:
  BuiltInFunction

public class Average
extends java.lang.Object
implements BuiltInFunction

Constructor Summary
`Average()`

Method Summary
`int` | `getArity()` Returns the arity of the function.
`Cell` | `perform(Cell[] args, Evaluator e)` Returns a Cell object that is the root of a graph that represents the result of applying the built-in function to the arguments args.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### Average

    public Average()

Method Detail

### getArity

    public int getArity()

  Description copied from interface: `BuiltInFunction`
  Returns the arity of the function.

  Specified by:
    `getArity` in interface `BuiltInFunction`

### perform

    public Cell perform(Cell[] args,
                        Evaluator e)

  Description copied from interface: `BuiltInFunction`
  Returns a Cell object that is the root of a graph that represents the result of applying the built-in function to the arguments args. Uses the Evaluator e to evaluate any sub-queries that need to be evaluated.

  Specified by:
    `perform` in interface `BuiltInFunction`

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