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java.lang.Object weka.filters.Filter weka.filters.unsupervised.attribute.AbstractTimeSeries weka.filters.unsupervised.attribute.TimeSeriesTranslate
An instance filter that assumes instances form time-series data and replaces attribute values in the current instance with the equivalent attribute attribute values of some previous (or future) instance. For instances where the desired value is unknown either the instance may be dropped, or missing values used.
Valid filter-specific options are:
-R index1,index2-index4,...
Specify list of columns to calculate new values for.
First and last are valid indexes.
(default none)
-V
Invert matching sense (i.e. calculate for all non-specified columns)
-I num
The number of instances forward to translate values between.
A negative number indicates taking values from a past instance.
(default -1)
-M
For instances at the beginning or end of the dataset where the translated
values are not known, use missing values (default is to remove those
instances).
Field Summary |
Fields inherited from class weka.filters.unsupervised.attribute.AbstractTimeSeries |
m_FillWithMissing, m_History, m_InstanceRange, m_SelectedCols |
Fields inherited from class weka.filters.Filter |
m_NewBatch |
Constructor Summary | |
TimeSeriesTranslate()
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Method Summary | |
java.lang.String |
globalInfo()
Returns a string describing this classifier |
static void |
main(java.lang.String[] argv)
Main method for testing this class. |
protected Instance |
mergeInstances(Instance source,
Instance dest)
Creates a new instance the same as one instance (the "destination") but with some attribute values copied from another instance (the "source") |
boolean |
setInputFormat(Instances instanceInfo)
Sets the format of the input instances. |
Methods inherited from class weka.filters.unsupervised.attribute.AbstractTimeSeries |
attributeIndicesTipText, batchFinished, fillWithMissingTipText, getAttributeIndices, getFillWithMissing, getInstanceRange, getInvertSelection, getOptions, historyInput, input, instanceRangeTipText, invertSelectionTipText, listOptions, resetHistory, setAttributeIndices, setAttributeIndicesArray, setFillWithMissing, setInstanceRange, setInvertSelection, setOptions |
Methods inherited from class weka.filters.Filter |
batchFilterFile, bufferInput, copyStringValues, copyStringValues, filterFile, flushInput, getInputFormat, getInputStringIndex, getOutputFormat, getOutputStringIndex, getStringIndices, inputFormat, inputFormatPeek, isOutputFormatDefined, numPendingOutput, output, outputFormat, outputFormatPeek, outputPeek, push, resetQueue, setOutputFormat, useFilter |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public TimeSeriesTranslate()
Method Detail |
public java.lang.String globalInfo()
public boolean setInputFormat(Instances instanceInfo) throws java.lang.Exception
setInputFormat
in class AbstractTimeSeries
instanceInfo
- an Instances object containing the input instance
structure (any instances contained in the object are ignored - only the
structure is required).
UnsupportedAttributeTypeException
- if selected
attributes are not numeric or nominal.
java.lang.Exception
- if the format couldn't be set successfullyprotected Instance mergeInstances(Instance source, Instance dest)
mergeInstances
in class AbstractTimeSeries
source
- the source instancedest
- the destination instance
public static void main(java.lang.String[] argv)
argv
- should contain arguments to the filter: use -h for help
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