adams.data.weka.columnfinder
Class AbstractColumnFinder

java.lang.Object
  adams.core.ConsoleObject
      adams.core.option.AbstractOptionHandler
          adams.data.weka.columnfinder.AbstractColumnFinder

All Implemented Interfaces:

Debuggable, Destroyable, OptionHandler, ShallowCopySupporter<ColumnFinder>, SizeOfHandler, ColumnFinder, Serializable

Direct Known Subclasses:

AbstractColumnFinderWithCapabilities, AbstractTrainableColumnFinder, ByName, NullFinder

public abstract class AbstractColumnFinder
extends AbstractOptionHandler
implements ColumnFinder, ShallowCopySupporter<ColumnFinder>

Ancestor for classes that find columns of interest in datasets.

Version:

$Revision: 5747 $

Author:

fracpete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Field Summary

Fields inherited from class adams.core.option.AbstractOptionHandler

m_DebugLevel, m_OptionManager

Constructor Summary

AbstractColumnFinder()

Method Summary

static HashSet<Integer>	arrayToHashSet(int[] indices) Turns the array into a hashset.
protected void	check(weka.core.Instances data) Checks the data.
int	compareTo(Object o) Compares this object with the specified object for order.
protected abstract int[]	doFindColumns(weka.core.Instances data) Returns the columns of interest in the dataset.
boolean	equals(Object o) Returns whether the two objects are the same.
int[]	findColumns(weka.core.Instances data) Returns the columns of interest in the dataset.
static ColumnFinder	forCommandLine(String cmdline) Instantiates the column finder from the given commandline (i.e., classname and optional options).
static ColumnFinder	forName(String classname, String[] options) Instantiates the column finder with the given options.
static String[]	getColumnFinders() Returns a list with classnames of column finders.
ColumnFinder	shallowCopy() Returns a shallow copy of itself, i.e., based on the commandline options.
ColumnFinder	shallowCopy(boolean expand) Returns a shallow copy of itself, i.e., based on the commandline options.

Methods inherited from class adams.core.option.AbstractOptionHandler

cleanUpOptions, debug, debug, debugLevelTipText, defineOptions, destroy, finishInit, getDebugLevel, getOptionManager, globalInfo, initialize, isDebugOn, newOptionManager, reset, setDebugLevel, toCommandLine, toString

Methods inherited from class adams.core.ConsoleObject

getDebugging, getSystemErr, getSystemOut, sizeOf

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractColumnFinder

public AbstractColumnFinder()

Method Detail

check

protected void check(weka.core.Instances data)

Checks the data.

Default implementation only checks whether we have any data at all.

Parameters:

data - the data to check

doFindColumns

protected abstract int[] doFindColumns(weka.core.Instances data)

Returns the columns of interest in the dataset.

Parameters:

data - the dataset to inspect

Returns:

the columns of interest

findColumns

public int[] findColumns(weka.core.Instances data)

Returns the columns of interest in the dataset.

Specified by:

findColumns in interface ColumnFinder

Parameters:

data - the dataset to inspect

Returns:

the columns of interest

compareTo

public int compareTo(Object o)

Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

Only compares the commandlines of the two objects.

Parameters:

o - the object to be compared.

Returns:

a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

equals

public boolean equals(Object o)

Returns whether the two objects are the same.

Only compares the commandlines of the two objects.

Overrides:

equals in class Object

Parameters:

o - the object to be compared

Returns:

true if the object is the same as this one

shallowCopy

public ColumnFinder shallowCopy()

Returns a shallow copy of itself, i.e., based on the commandline options.

Specified by:

shallowCopy in interface ShallowCopySupporter<ColumnFinder>

Returns:

the shallow copy

shallowCopy

public ColumnFinder shallowCopy(boolean expand)

Returns a shallow copy of itself, i.e., based on the commandline options.

Specified by:

shallowCopy in interface ShallowCopySupporter<ColumnFinder>

Parameters:

expand - whether to expand variables to their current values

Returns:

the shallow copy

getColumnFinders

public static String[] getColumnFinders()

Returns a list with classnames of column finders.

Returns:

the column finder classnames

forName

public static ColumnFinder forName(String classname,
                                   String[] options)

Instantiates the column finder with the given options.

Parameters:

classname - the classname of the column finder to instantiate

options - the options for the column finder

Returns:

the instantiated column finder or null if an error occurred

forCommandLine

public static ColumnFinder forCommandLine(String cmdline)

Instantiates the column finder from the given commandline (i.e., classname and optional options).

Parameters:

cmdline - the classname (and optional options) of the column finder to instantiate

Returns:

the instantiated column finder or null if an error occurred

arrayToHashSet

public static HashSet<Integer> arrayToHashSet(int[] indices)

Turns the array into a hashset.

Parameters:

indices - the indices to turn into hashset

Returns:

the generated hashset