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java.lang.Objectweka.core.pmml.Expression
weka.core.pmml.FieldRef
public class FieldRef
Class encapsulating a FieldRef Expression. Is simply a pass-through to an existing field.
Constructor Summary | |
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FieldRef(org.w3c.dom.Element fieldRef,
FieldMetaInfo.Optype opType,
java.util.ArrayList<Attribute> fieldDefs)
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Method Summary | |
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Attribute |
getOutputDef()
Return the structure of the result of applying this Expression as an Attribute. |
double |
getResult(double[] incoming)
Get the result of evaluating the expression. |
java.lang.String |
getResultCategorical(double[] incoming)
Gets the result of evaluating the expression when the optype is categorical or ordinal as the actual String value. |
void |
setFieldDefs(java.util.ArrayList<Attribute> fieldDefs)
Set the field definitions for this Expression to use |
java.lang.String |
toString(java.lang.String pad)
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Methods inherited from class weka.core.pmml.Expression |
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getExpression, getExpression, getFieldDef, getFieldDefIndex, getOptype, getResultContinuous, toString |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public FieldRef(org.w3c.dom.Element fieldRef, FieldMetaInfo.Optype opType, java.util.ArrayList<Attribute> fieldDefs) throws java.lang.Exception
java.lang.Exception
Method Detail |
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public void setFieldDefs(java.util.ArrayList<Attribute> fieldDefs) throws java.lang.Exception
Expression
setFieldDefs
in class Expression
fieldDefs
- the field definitions to use
java.lang.Exception
- if there is a problem setting the field definitionspublic double getResult(double[] incoming) throws java.lang.Exception
Expression
getResult
in class Expression
incoming
- the incoming parameter values
java.lang.Exception
- if there is a problem computing the resultpublic java.lang.String getResultCategorical(double[] incoming) throws java.lang.Exception
Expression
getResultCategorical
in class Expression
incoming
- the incoming parameter values
java.lang.Exception
- if the optype is continuouspublic Attribute getOutputDef()
public java.lang.String toString(java.lang.String pad)
toString
in class Expression
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