io.cdap.wrangler.statistics

Class BasicStatistics

java.lang.Object

io.cdap.wrangler.statistics.BasicStatistics

All Implemented Interfaces:

Statistics

public class BasicStatistics
extends Object
implements Statistics

Basic class to compute summary from a list of rows

Constructor Summary

Constructors

Constructor and Description
BasicStatistics()

Method Summary

Modifier and Type	Method and Description
Row	aggregate(List<Row> rows) Aggregates statistics for all the rows.

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicStatistics

public BasicStatistics()
                throws Exception

Throws:

Exception

Method Detail

aggregate

public Row aggregate(List<Row> rows)

Description copied from interface: Statistics

Aggregates statistics for all the rows.

Specified by:

aggregate in interface Statistics

Parameters:

rows - to be aggregated.

Returns:

Summary in the form of Row