tech.tablesaw.aggregate

Class AggregateFunction

java.lang.Object

tech.tablesaw.aggregate.AggregateFunction

Direct Known Subclasses:

BooleanAggregateFunction, DateAggregateFunction, DateTimeAggregateFunction, NumericAggregateFunction, StringAggregateFunction, TimeAggregateFunction

public abstract class AggregateFunction
extends Object

A partial implementation of aggregate functions to summarize over a numeric column

Constructor Summary

Constructors

Constructor and Description
AggregateFunction(String name)

Method Summary

Modifier and Type	Method and Description
String	functionName()
abstract boolean	isCompatibleWith(ColumnType type)
abstract double	summarize(Column column)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

AggregateFunction

public AggregateFunction(String name)

Method Detail

summarize

public abstract double summarize(Column column)

functionName

public String functionName()

toString

public String toString()

Overrides:

toString in class Object

isCompatibleWith

public abstract boolean isCompatibleWith(ColumnType type)