AbstractTimeSeries

java.lang.Object
- weka.filters.Filter
- - weka.filters.unsupervised.attribute.AbstractTimeSeries

All Implemented Interfaces:

java.io.Serializable, CapabilitiesHandler, CapabilitiesIgnorer, CommandlineRunnable, OptionHandler, RevisionHandler, WeightedAttributesHandler, WeightedInstancesHandler, UnsupervisedFilter

Direct Known Subclasses:

TimeSeriesTranslate
```
public abstract class AbstractTimeSeries
extends Filter
implements UnsupervisedFilter, OptionHandler, WeightedAttributesHandler, WeightedInstancesHandler
```
An abstract instance filter that assumes instances form time-series data and performs some merging of attribute values in the current instance with 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 merge 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, remove those instances (default is to use missing values).

Version:

$Revision: 14534 $

Author:

Len Trigg (trigg@cs.waikato.ac.nz)

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor and Description

AbstractTimeSeries()

Constructors
Constructor and Description
`AbstractTimeSeries()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`java.lang.String`	`attributeIndicesTipText()` Returns the tip text for this property
`boolean`	`batchFinished()` Signifies that this batch of input to the filter is finished.
`java.lang.String`	`fillWithMissingTipText()` Returns the tip text for this property
`java.lang.String`	`getAttributeIndices()` Get the current range selection
`boolean`	`getFillWithMissing()` Gets whether missing values should be used rather than removing instances where the translated value is not known (due to border effects).
`int`	`getInstanceRange()` Gets the number of instances forward to translate values between.
`boolean`	`getInvertSelection()` Get whether the supplied columns are to be removed or kept
`java.lang.String[]`	`getOptions()` Gets the current settings of the filter.
`boolean`	`input(Instance instance)` Input an instance for filtering.
`java.lang.String`	`instanceRangeTipText()` Returns the tip text for this property
`java.lang.String`	`invertSelectionTipText()` Returns the tip text for this property
`java.util.Enumeration<Option>`	`listOptions()` Returns an enumeration describing the available options.
`void`	`setAttributeIndices(java.lang.String rangeList)` Set which attributes are to be copied (or kept if invert is true)
`void`	`setAttributeIndicesArray(int[] attributes)` Set which attributes are to be copied (or kept if invert is true)
`void`	`setFillWithMissing(boolean newFillWithMissing)` Sets whether missing values should be used rather than removing instances where the translated value is not known (due to border effects).
`boolean`	`setInputFormat(Instances instanceInfo)` Sets the format of the input instances.
`void`	`setInstanceRange(int newInstanceRange)` Sets the number of instances forward to translate values between.
`void`	`setInvertSelection(boolean invert)` Set whether selected columns should be removed or kept.
`void`	`setOptions(java.lang.String[] options)` Parses a given list of options controlling the behaviour of this object.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface weka.core.OptionHandler
makeCopy

- Constructor Detail
  - AbstractTimeSeries
```
public AbstractTimeSeries()
```
- Method Detail
  - listOptions
```
public java.util.Enumeration<Option> listOptions()
```
    Returns an enumeration describing the available options.
    
    Specified by:
    
    listOptions in interface OptionHandler
    
    Overrides:
    
    listOptions in class Filter
    
    Returns:
    
    an enumeration of all the available options.
  - setOptions
```
public void setOptions(java.lang.String[] options)
                throws java.lang.Exception
```
    Parses a given list of options controlling the behaviour of this object. Valid options are:
    -R index1,index2-index4,...
    Specify list of columns to copy. 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, remove those instances (default is to use missing values).
    
    Specified by:
    
    setOptions in interface OptionHandler
    
    Overrides:
    
    setOptions in class Filter
    
    Parameters:
    
    options - the list of options as an array of strings
    
    Throws:
    
    java.lang.Exception - if an option is not supported
  - getOptions
```
public java.lang.String[] getOptions()
```
    Gets the current settings of the filter.
    
    Specified by:
    
    getOptions in interface OptionHandler
    
    Overrides:
    
    getOptions in class Filter
    
    Returns:
    
    an array of strings suitable for passing to setOptions
  - setInputFormat
```
public boolean setInputFormat(Instances instanceInfo)
                       throws java.lang.Exception
```
    Sets the format of the input instances.
    
    Overrides:
    
    setInputFormat in class Filter
    
    Parameters:
    
    instanceInfo - an Instances object containing the input instance structure (any instances contained in the object are ignored - only the structure is required).
    
    Returns:
    
    true if the outputFormat may be collected immediately
    
    Throws:
    
    java.lang.Exception - if the format couldn't be set successfully
  - input
```
public boolean input(Instance instance)
              throws java.lang.Exception
```
    Input an instance for filtering. Ordinarily the instance is processed and made available for output immediately. Some filters require all instances be read before producing output.
    
    Overrides:
    
    input in class Filter
    
    Parameters:
    
    instance - the input instance
    
    Returns:
    
    true if the filtered instance may now be collected with output().
    
    Throws:
    
    java.lang.Exception - if the input instance was not of the correct format or if there was a problem with the filtering.
  - batchFinished
```
public boolean batchFinished()
```
    Signifies that this batch of input to the filter is finished. If the filter requires all instances prior to filtering, output() may now be called to retrieve the filtered instances.
    
    Overrides:
    
    batchFinished in class Filter
    
    Returns:
    
    true if there are instances pending output
    
    Throws:
    
    java.lang.IllegalStateException - if no input structure has been defined
  - fillWithMissingTipText
```
public java.lang.String fillWithMissingTipText()
```
    Returns the tip text for this property
    
    Returns:
    
    tip text for this property suitable for displaying in the explorer/experimenter gui
  - getFillWithMissing
```
public boolean getFillWithMissing()
```
    Gets whether missing values should be used rather than removing instances where the translated value is not known (due to border effects).
    
    Returns:
    
    true if so
  - setFillWithMissing
```
public void setFillWithMissing(boolean newFillWithMissing)
```
    Sets whether missing values should be used rather than removing instances where the translated value is not known (due to border effects).
    
    Parameters:
    
    newFillWithMissing - true if so
  - instanceRangeTipText
```
public java.lang.String instanceRangeTipText()
```
    Returns the tip text for this property
    
    Returns:
    
    tip text for this property suitable for displaying in the explorer/experimenter gui
  - getInstanceRange
```
public int getInstanceRange()
```
    Gets the number of instances forward to translate values between. A negative number indicates taking values from a past instance.
    
    Returns:
    
    Value of InstanceRange.
  - setInstanceRange
```
public void setInstanceRange(int newInstanceRange)
```
    Sets the number of instances forward to translate values between. A negative number indicates taking values from a past instance.
    
    Parameters:
    
    newInstanceRange - Value to assign to InstanceRange.
  - invertSelectionTipText
```
public java.lang.String invertSelectionTipText()
```
    Returns the tip text for this property
    
    Returns:
    
    tip text for this property suitable for displaying in the explorer/experimenter gui
  - getInvertSelection
```
public boolean getInvertSelection()
```
    Get whether the supplied columns are to be removed or kept
    
    Returns:
    
    true if the supplied columns will be kept
  - setInvertSelection
```
public void setInvertSelection(boolean invert)
```
    Set whether selected columns should be removed or kept. If true the selected columns are kept and unselected columns are copied. If false selected columns are copied and unselected columns are kept.
    
    Parameters:
    
    invert - the new invert setting
  - attributeIndicesTipText
```
public java.lang.String attributeIndicesTipText()
```
    Returns the tip text for this property
    
    Returns:
    
    tip text for this property suitable for displaying in the explorer/experimenter gui
  - getAttributeIndices
```
public java.lang.String getAttributeIndices()
```
    Get the current range selection
    
    Returns:
    
    a string containing a comma separated list of ranges
  - setAttributeIndices
```
public void setAttributeIndices(java.lang.String rangeList)
```
    Set which attributes are to be copied (or kept if invert is true)
    
    Parameters:
    
    rangeList - a string representing the list of attributes. Since the string will typically come from a user, attributes are indexed from 1.
    eg: first-3,5,6-last
  - setAttributeIndicesArray
```
public void setAttributeIndicesArray(int[] attributes)
```
    Set which attributes are to be copied (or kept if invert is true)
    
    Parameters:
    
    attributes - an array containing indexes of attributes to select. Since the array will typically come from a program, attributes are indexed from 0.

Class AbstractTimeSeries

Constructor Summary

Method Summary

Methods inherited from class weka.filters.Filter

Methods inherited from class java.lang.Object

Methods inherited from interface weka.core.OptionHandler

Constructor Detail

AbstractTimeSeries

Method Detail

listOptions

setOptions

getOptions

setInputFormat

input

batchFinished

fillWithMissingTipText

getFillWithMissing

setFillWithMissing

instanceRangeTipText

getInstanceRange

setInstanceRange

invertSelectionTipText

getInvertSelection

setInvertSelection

attributeIndicesTipText

getAttributeIndices

setAttributeIndices

setAttributeIndicesArray