de.unknownreality.dataframe.group

Class GroupUtil

java.lang.Object

de.unknownreality.dataframe.group.GroupUtil

public class GroupUtil
extends Object

Created by Alex on 10.03.2016.

Constructor Summary

Constructors

Constructor and Description
GroupUtil()

Method Summary

Modifier and Type	Method and Description
static DataGrouping	groupBy(DataFrame df, String... columns) Groups a DataFrame 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

GroupUtil

public GroupUtil()

Method Detail

groupBy

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

Groups a DataFrame using one or more columns.

Parameters:

df - input data frame

columns - grouping columns

Returns:

data grouping