com.rapidminer.example.table
Class ViewAttribute

java.lang.Object
  com.rapidminer.example.table.AbstractAttribute
      com.rapidminer.example.table.ViewAttribute

All Implemented Interfaces:

Attribute, java.io.Serializable, java.lang.Cloneable

public class ViewAttribute
extends AbstractAttribute

A view attribute is based on a ViewModel (Preprocessing Model) and applies the model on the fly.

Author:

Sebastian Land

See Also:

Serialized Form

Field Summary

Fields inherited from interface com.rapidminer.example.Attribute

MISSING_NOMINAL_VALUE, UNDEFINED_ATTRIBUTE_INDEX, VIEW_ATTRIBUTE_INDEX

Constructor Summary

ViewAttribute(ViewModel model, Attribute parent, java.lang.String name, int valueType, NominalMapping mapping)

Method Summary

java.lang.Object	clone() Clones this attribute.
java.lang.String	getAsString(double value, int numberOfDigits, boolean quoteNominal) Returns a formatted string of the given value according to the attribute type.
NominalMapping	getMapping() Returns the nominal mapping between nominal values and internal double representations.
int	getTableIndex() Returns the index in the example table.
double	getValue(DataRow row) Returns the value for the column this attribute corresponds to in the given data row.
boolean	isNominal() Returns true if the attribute is nominal.
boolean	isNumerical() Returns true if the attribute is nominal.
void	setMapping(NominalMapping nominalMapping) Returns the nominal mapping between nominal values and internal double representations.

Methods inherited from class com.rapidminer.example.table.AbstractAttribute

addOwner, addTransformation, clearTransformations, equals, getAllStatistics, getAnnotations, getBlockType, getConstruction, getDefault, getLastTransformation, getName, getStatistics, getStatistics, getValueType, hashCode, registerStatistics, removeOwner, setBlockType, setConstruction, setDefault, setName, setTableIndex, setValue, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ViewAttribute

public ViewAttribute(ViewModel model,
                     Attribute parent,
                     java.lang.String name,
                     int valueType,
                     NominalMapping mapping)

Method Detail

getValue

public double getValue(DataRow row)

Description copied from interface: Attribute

Returns the value for the column this attribute corresponds to in the given data row.

Specified by:

getValue in interface Attribute

Overrides:

getValue in class AbstractAttribute

clone

public java.lang.Object clone()

Description copied from class: AbstractAttribute

Clones this attribute.

Specified by:

clone in interface Attribute

Specified by:

clone in class AbstractAttribute

getAsString

public java.lang.String getAsString(double value,
                                    int numberOfDigits,
                                    boolean quoteNominal)

Description copied from interface: Attribute

Returns a formatted string of the given value according to the attribute type.

getMapping

public NominalMapping getMapping()

Description copied from interface: Attribute

Returns the nominal mapping between nominal values and internal double representations. Please note that invoking this method might result in an UnsupportedOperationException for non-nominal attributes.

isNominal

public boolean isNominal()

Description copied from interface: Attribute

Returns true if the attribute is nominal.

isNumerical

public boolean isNumerical()

Description copied from interface: Attribute

Returns true if the attribute is nominal.

setMapping

public void setMapping(NominalMapping nominalMapping)

Description copied from interface: Attribute

Returns the nominal mapping between nominal values and internal double representations. Please note that invoking this method might result in an exception for non-nominal attributes.

getTableIndex

public int getTableIndex()

Description copied from class: AbstractAttribute

Returns the index in the example table.

Specified by:

getTableIndex in interface Attribute

Overrides:

getTableIndex in class AbstractAttribute