de.lmu.ifi.dbs.elki.evaluation.outlier

Class OutlierPrecisionRecallCurve.PRCurve

java.lang.Object

de.lmu.ifi.dbs.elki.math.geometry.XYCurve

de.lmu.ifi.dbs.elki.evaluation.outlier.OutlierPrecisionRecallCurve.PRCurve

All Implemented Interfaces:

Result, TextWriteable

Enclosing class:

OutlierPrecisionRecallCurve

public static class OutlierPrecisionRecallCurve.PRCurve
extends XYCurve

P/R Curve

Author:

Erich Schubert

Nested Class Summary

Nested classes/interfaces inherited from class de.lmu.ifi.dbs.elki.math.geometry.XYCurve

XYCurve.Itr

Field Summary

Fields

Modifier and Type	Field and Description
(package private) double	auc Area under curve
(package private) int	positive Number of positive observations
static String	PRAUC_LABEL AUC value for PR curve

Fields inherited from class de.lmu.ifi.dbs.elki.math.geometry.XYCurve

data, labelx, labely, maxx, maxy, minx, miny, THRESHOLD

Constructor Summary

Constructors

Constructor and Description
OutlierPrecisionRecallCurve.PRCurve(int size, int positive) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
double	getAUC() Get AUC value
String	getLongName() A "pretty" name for the result, for use in titles, captions and menus.
String	getShortName() A short name for the result, useful for file names.
void	writeToText(TextWriterStream out, String label) Write self to the given TextWriterStream

Methods inherited from class de.lmu.ifi.dbs.elki.math.geometry.XYCurve

add, addAndSimplify, areaUnderCurve, getLabelx, getLabely, getMaxx, getMaxy, getMinx, getMiny, getX, getY, iterator, rescale, size, toString

Methods inherited from class java.lang.Object

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

Field Detail

PRAUC_LABEL

public static final String PRAUC_LABEL

AUC value for PR curve

See Also:

Constant Field Values

auc

double auc

Area under curve

positive

int positive

Number of positive observations

Constructor Detail

OutlierPrecisionRecallCurve.PRCurve

public OutlierPrecisionRecallCurve.PRCurve(int size,
                                   int positive)

Constructor.

Parameters:

size - Size estimation

positive - Number of positive elements (for AUC correction)

Method Detail

getLongName

public String getLongName()

Description copied from interface: Result

A "pretty" name for the result, for use in titles, captions and menus.

Specified by:

getLongName in interface Result

Overrides:

getLongName in class XYCurve

Returns:

result name

getShortName

public String getShortName()

Description copied from interface: Result

A short name for the result, useful for file names.

Specified by:

getShortName in interface Result

Overrides:

getShortName in class XYCurve

Returns:

result name

getAUC

public double getAUC()

Get AUC value

Returns:

AUC value

writeToText

public void writeToText(TextWriterStream out,
               String label)

Description copied from interface: TextWriteable

Write self to the given TextWriterStream

Specified by:

writeToText in interface TextWriteable

Overrides:

writeToText in class XYCurve

Parameters:

out - Output writer

label - Label