de.unknownreality.dataframe.group.impl

Class TreeGroupUtil

java.lang.Object

de.unknownreality.dataframe.group.impl.TreeGroupUtil

All Implemented Interfaces:

GroupUtil

public class TreeGroupUtil
extends Object
implements GroupUtil

Created by Alex on 10.03.2016.

Constructor Summary

Constructors

Constructor and Description
TreeGroupUtil()

Method Summary

Modifier and Type	Method and Description
DataGrouping	groupBy(DataFrame df, String... columns) Groups a DefaultDataFrame using one or more columns.

Methods inherited from class java.lang.Object

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

Constructor Detail

TreeGroupUtil

public TreeGroupUtil()

Method Detail

groupBy

public DataGrouping groupBy(DataFrame df,
                            String... columns)

Groups a DefaultDataFrame using one or more columns.

Specified by:

groupBy in interface GroupUtil

Parameters:

df - input data frame

columns - grouping columns

Returns:

data grouping