com.rapidminer.operator.preprocessing.series
Class FillDataGaps

java.lang.Object
  com.rapidminer.operator.Operator
      com.rapidminer.operator.AbstractExampleSetProcessing
          com.rapidminer.operator.preprocessing.series.AbstractSeriesProcessing
              com.rapidminer.operator.preprocessing.series.FillDataGaps

All Implemented Interfaces:

ConfigurationListener, PreviewListener, ParameterHandler, LoggingHandler

public class FillDataGaps
extends AbstractSeriesProcessing

This operator fills gaps in the data based on the ID attribute of the data set. The ID attribute must either have the value type "integer" or one of the data value types.

The operator performs the following steps:

1. The data is sorted according to the ID attribute
2. All occurring distances between consecutive ID values are calculated
3. The greatest common divisor (GCD) of all distances is calculated
4. All rows which would have an ID value which is a multiple of the GCD but are missing are added to the data set

Please note that all values of attributes beside the ID attribute will have a missing value which often must be replaced as a next step.

Author:

Ingo Mierswa

Field Summary

static java.lang.String	PARAMETER_END
static java.lang.String	PARAMETER_START
static java.lang.String	PARAMETER_STEP_SIZE
static java.lang.String	PARAMETER_USE_GCD_FOR_STEP_SIZE

Constructor Summary

FillDataGaps(OperatorDescription description)

Method Summary

ExampleSet	apply(ExampleSet inputSet) Delegate for the apply method.
java.util.List<ParameterType>	getParameterTypes() Returns a list of ParameterTypes describing the parameters of this operator.

Methods inherited from class com.rapidminer.operator.AbstractExampleSetProcessing

apply, getInputClasses, getOutputClasses

Methods inherited from class com.rapidminer.operator.Operator

addError, addValue, addWarning, apply, checkDeprecations, checkForStop, checkIO, checkProperties, clearErrorList, cloneOperator, createExperimentTree, createExperimentTree, createFromXML, createMarkedExperimentTree, createMarkedProcessTree, createProcessTree, createProcessTree, getAddOnlyAdditionalOutput, getApplyCount, getDeliveredOutputClasses, getDeprecationInfo, getDesiredInputClasses, getEncoding, getErrorList, getExperiment, getInnerOperatorsXML, getInput, getInput, getInput, getInputDescription, getIOContainerForInApplyLoopBreakpoint, getIODescription, getLog, getName, getOperatorClassName, getOperatorDescription, getParameter, getParameterAsBoolean, getParameterAsColor, getParameterAsDouble, getParameterAsFile, getParameterAsFile, getParameterAsInputStream, getParameterAsInt, getParameterAsMatrix, getParameterAsString, getParameterList, getParameters, getParameterType, getParent, getProcess, getStartTime, getStatus, getUserDescription, getValue, getValues, getXML, hasBreakpoint, hasBreakpoint, hasInput, inApplyLoop, isDebugMode, isEnabled, isExpanded, isParallel, isParameterSet, log, logError, logNote, logWarning, performAdditionalChecks, processFinished, processStarts, register, registerOperator, remove, rename, resume, setApplyCount, setBreakpoint, setEnabled, setExpanded, setInput, setListParameter, setOperatorParameters, setParameter, setParameters, setParent, setUserDescription, toString, unregisterOperator, writeXML

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

PARAMETER_USE_GCD_FOR_STEP_SIZE

public static final java.lang.String PARAMETER_USE_GCD_FOR_STEP_SIZE

See Also:

Constant Field Values

PARAMETER_STEP_SIZE

public static final java.lang.String PARAMETER_STEP_SIZE

See Also:

Constant Field Values

PARAMETER_START

public static final java.lang.String PARAMETER_START

See Also:

Constant Field Values

PARAMETER_END

public static final java.lang.String PARAMETER_END

See Also:

Constant Field Values

Constructor Detail

FillDataGaps

public FillDataGaps(OperatorDescription description)

Method Detail

apply

public ExampleSet apply(ExampleSet inputSet)
                 throws OperatorException

Description copied from class: AbstractExampleSetProcessing

Delegate for the apply method. In most cases, the returned example set will be the same as the example set or a modified clone.

Specified by:

apply in class AbstractExampleSetProcessing

Throws:

OperatorException

getParameterTypes

public java.util.List<ParameterType> getParameterTypes()

Description copied from class: Operator

Returns a list of ParameterTypes describing the parameters of this operator. The default implementation returns an empty list if no input objects can be retained and special parameters for those input objects which can be prevented from being consumed.

Specified by:

getParameterTypes in interface ParameterHandler

Overrides:

getParameterTypes in class Operator