Constructor Detail

• DoubleMedianValueAggregatorFunction

  public DoubleMedianValueAggregatorFunction()

  By default create a function which will operate on a copy of the original list (useCopy = true).

  See Also:

  useCopy

• DoubleMedianValueAggregatorFunction

  public DoubleMedianValueAggregatorFunction(boolean useCopy)

  Constructor which allows the caller to specify whether to operate on the original list or a copy of it.

  Parameters:

  useCopy - Set to true to operate on a copy of the list or false to operate on the original list.

  See Also:

  useCopy

Method Detail

• isUseCopy

  public boolean isUseCopy()

  Getter for useCopy.

  Returns:

  Current value of useCopy.

  See Also:

  useCopy

• evaluate

  public Double evaluate(List<Double> data)

  Sorts the given list and chooses the median value. The sorting can be carried out against the original list or a copy of it, based on the value of useCopy.

  Specified by:

  evaluate in interface UnaryFunction<List<Double>,Double>

  Parameters:

  data - List to compute the median value for

  Returns:

  the median value of the given list or null if the list is null or empty.

• toString

  public String toString()

  Overrides:

  toString in class Object