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java.lang.Objectorg.knime.base.node.preproc.groupby.aggregation.Operators
public final class Operators
Contains all nominal aggregation operators.
Nested Class Summary | |
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(package private) class |
Operators.ConcatenateOperator
Returns the all values concatenated per group. |
(package private) class |
Operators.CountOperator
Returns the count per group. |
(package private) class |
Operators.FirstOperator
Returns the first element per group. |
(package private) class |
Operators.FirstValueOperator
Returns the first value (ignores missing values) per group. |
(package private) class |
Operators.LastOperator
Returns the last element per group. |
(package private) class |
Operators.LastValueOperator
Returns the last value (ignores missing values) per group. |
(package private) class |
Operators.ListCellOperator
Returns all values as a ListCell per group. |
(package private) class |
Operators.ModeOperator
Returns the most frequent entry per group. |
(package private) class |
Operators.SetCellOperator
Returns all values as a SetCell per group. |
(package private) class |
Operators.UniqueConcatenateOperator
Returns the concatenation of all different values per group. |
(package private) class |
Operators.UniqueConcatenateWithCountOperator
Returns the concatenation of all different values per group and the number of cells per distinct value. |
(package private) class |
Operators.UniqueCountOperator
Returns the count of the unique values per group. |
Method Summary | |
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static Operators |
getInstance()
Returns the only instance of this class. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
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public static Operators getInstance()
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