Class ChangeDateFormat
java.lang.Object
weka.filters.Filter
weka.filters.unsupervised.attribute.ChangeDateFormat
- All Implemented Interfaces:
Serializable,CapabilitiesHandler,CapabilitiesIgnorer,CommandlineRunnable,OptionHandler,RevisionHandler,WeightedAttributesHandler,WeightedInstancesHandler,StreamableFilter,UnsupervisedFilter
public class ChangeDateFormat
extends Filter
implements UnsupervisedFilter, StreamableFilter, OptionHandler, WeightedInstancesHandler, WeightedAttributesHandler
Changes the date format used by a date attribute.
This is most useful for converting to a format with less precision, for
example, from an absolute date to day of year, etc. This changes the format
string, and changes the date values to those that would be parsed by the new
format.
Valid options are:
-C <col> Sets the attribute index (default last).
-F <value index> Sets the output date format string (default corresponds to ISO-8601).
- Version:
- $Revision: 14534 $
- Author:
- Len Trigg
- See Also:
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionGets the index of the attribute converted.Returns the Capabilities of this filter.Get the date format used in output.String[]Gets the current settings of the filter.Returns the revision string.Returns a string describing this filterbooleanInput an instance for filtering.Returns an enumeration describing the available optionsstatic voidMain method for testing this class.voidsetAttributeIndex(String attIndex) Sets the index of the attribute used.voidsetDateFormat(String dateFormat) Sets the output date format.voidsetDateFormat(SimpleDateFormat dateFormat) Sets the output date format.booleansetInputFormat(Instances instanceInfo) Sets the format of the input instances.voidsetOptions(String[] options) Parses a given list of options.Methods inherited from class weka.filters.Filter
batchFilterFile, batchFinished, debugTipText, doNotCheckCapabilitiesTipText, filterFile, getCapabilities, getCopyOfInputFormat, getDebug, getDoNotCheckCapabilities, getOutputFormat, isFirstBatchDone, isNewBatch, isOutputFormatDefined, makeCopies, makeCopy, mayRemoveInstanceAfterFirstBatchDone, numPendingOutput, output, outputPeek, postExecution, preExecution, run, runFilter, setDebug, setDoNotCheckCapabilities, toString, useFilter, wekaStaticWrapper
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Constructor Details
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ChangeDateFormat
public ChangeDateFormat()
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Method Details
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globalInfo
Returns a string describing this filter- Returns:
- a description of the filter suitable for displaying in the explorer/experimenter gui
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getCapabilities
Returns the Capabilities of this filter.- Specified by:
getCapabilitiesin interfaceCapabilitiesHandler- Overrides:
getCapabilitiesin classFilter- Returns:
- the capabilities of this object
- See Also:
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setInputFormat
Sets the format of the input instances.- Overrides:
setInputFormatin classFilter- 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:
Exception- if the input format can't be set successfully
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input
Input an instance for filtering. -
listOptions
Returns an enumeration describing the available options- Specified by:
listOptionsin interfaceOptionHandler- Overrides:
listOptionsin classFilter- Returns:
- an enumeration of all the available options
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setOptions
Parses a given list of options. Valid options are:-C <col> Sets the attribute index (default last).
-F <value index> Sets the output date format string (default corresponds to ISO-8601).
- Specified by:
setOptionsin interfaceOptionHandler- Overrides:
setOptionsin classFilter- Parameters:
options- the list of options as an array of strings- Throws:
Exception- if an option is not supported
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getOptions
Gets the current settings of the filter.- Specified by:
getOptionsin interfaceOptionHandler- Overrides:
getOptionsin classFilter- Returns:
- an array of strings suitable for passing to setOptions
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attributeIndexTipText
- Returns:
- tip text for this property suitable for displaying in the explorer/experimenter gui
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getAttributeIndex
Gets the index of the attribute converted.- Returns:
- the index of the attribute
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setAttributeIndex
Sets the index of the attribute used.- Parameters:
attIndex- the index of the attribute
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dateFormatTipText
- Returns:
- tip text for this property suitable for displaying in the explorer/experimenter gui
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getDateFormat
Get the date format used in output.- Returns:
- the output date format.
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setDateFormat
Sets the output date format.- Parameters:
dateFormat- the output date format.
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setDateFormat
Sets the output date format.- Parameters:
dateFormat- the output date format.
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getRevision
Returns the revision string.- Specified by:
getRevisionin interfaceRevisionHandler- Overrides:
getRevisionin classFilter- Returns:
- the revision
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main
Main method for testing this class.- Parameters:
argv- should contain arguments to the filter: use -h for help
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