Package weka.core.pmml
Class NormDiscrete
- java.lang.Object
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- weka.core.pmml.Expression
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- weka.core.pmml.NormDiscrete
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- All Implemented Interfaces:
java.io.Serializable
public class NormDiscrete extends Expression
Class encapsulating a NormDiscrete Expression. Creates an indicator for a particular discrete value.- Version:
- $Revision 1.0 $
- Author:
- Mark Hall (mhall{[at]}pentaho{[dot]}com)
- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description NormDiscrete(org.w3c.dom.Element normDisc, FieldMetaInfo.Optype opType, java.util.ArrayList<Attribute> fieldDefs)
Constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description double
getResult(double[] incoming)
Get the result of evaluating the expression.java.lang.String
getResultCategorical(double[] incoming)
Always throws an Exception since the result of NormDiscrete must be continuous.void
setFieldDefs(java.util.ArrayList<Attribute> fieldDefs)
Set the field definitions for this Expression to usejava.lang.String
toString(java.lang.String pad)
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Methods inherited from class weka.core.pmml.Expression
getExpression, getExpression, getFieldDef, getFieldDefIndex, getOptype, getResultContinuous, toString
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Constructor Detail
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NormDiscrete
public NormDiscrete(org.w3c.dom.Element normDisc, FieldMetaInfo.Optype opType, java.util.ArrayList<Attribute> fieldDefs) throws java.lang.Exception
Constructor. Reads the field name and field value for this NormDiscrete Expression.- Parameters:
normDisc
- the Element encapsulating this NormDiscreteopType
- the optype for this expression (taken from either the enclosing DefineFunction or DerivedField)fieldDefs
- an ArrayList of Attributes for the fields that this Expression might need to access enclosing DefineFunction or DerivedField)- Throws:
java.lang.Exception
- if there is a problem parsing this Apply Expression
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Method Detail
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setFieldDefs
public void setFieldDefs(java.util.ArrayList<Attribute> fieldDefs) throws java.lang.Exception
Set the field definitions for this Expression to use- Overrides:
setFieldDefs
in classExpression
- Parameters:
fieldDefs
- the field definitions to use- Throws:
java.lang.Exception
- if there is a problem setting the field definitions
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getResult
public double getResult(double[] incoming) throws java.lang.Exception
Get the result of evaluating the expression. In the case of a continuous optype, a real number is returned; in the case of a categorical/ordinal optype, the index of the nominal value is returned as a double.- Specified by:
getResult
in classExpression
- Parameters:
incoming
- the incoming parameter values- Returns:
- the result of evaluating the expression
- Throws:
java.lang.Exception
- if there is a problem computing the result
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getResultCategorical
public java.lang.String getResultCategorical(double[] incoming) throws java.lang.Exception
Always throws an Exception since the result of NormDiscrete must be continuous.- Specified by:
getResultCategorical
in classExpression
- Parameters:
incoming
- the incoming parameter values- Returns:
- the result of evaluating the expression
- Throws:
java.lang.Exception
- always
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toString
public java.lang.String toString(java.lang.String pad)
- Overrides:
toString
in classExpression
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