Inheritance diagram for kddml.Core.QueryElement.Expression.IfTerm:
Public Member Functions | |
String | evalExpr (Instance instance) throws KDDMLCoreException |
Protected Member Functions | |
IfTerm (IF_EXPRESSION_CONDITION cond, Expression then, Expression _else) |
Title: KDDML
Description: Knowledge Discovery in Database Environment
Copyright: Copyright (c) 2003-2005
Company: Universita' di Pisa - Dipartimento di Informatica
Sandra Zimei
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Constructor.
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Evaluates the expression on input instance. The tupla is defined in weka.core.Instance class. It evaluates the condition on input instance. If the condition returns true, then it evaluates the then statement. Otherwise, it evaluate the else statement if it exist. If the else statement is null, the method returns a missing character "?".
Implements kddml.Core.QueryElement.Expression.Expression. |