com.compomics.util.math.statistics

Interface ROC

All Known Implementing Classes:

DataRoc, DistributionRoc

public interface ROC

This class can be used to draw ROC curves.

Author:

Marc Vaudel

Method Summary

Modifier and Type	Method and Description
double	getAuc() Returns an estimation of the area under the curve.
double	getSpecificityAt(double sensitivity) Returns the 1-specificity at a given sensitivity.
double	getValueAt(double specificity) Returns the sensitivity at a given 1-specificity, i.e., 1-type 2 error, the number of true healthy for a given type 1 error, the number of false healthy.
double[][]	getxYValues() Returns xy values to draw the curve.

Method Detail

getValueAt

double getValueAt(double specificity)
           throws org.apache.commons.math.MathException

Returns the sensitivity at a given 1-specificity, i.e., 1-type 2 error, the number of true healthy for a given type 1 error, the number of false healthy.

Parameters:

specificity - the specificity (0.1 is 10%)

Returns:

the sensitivity at the given specificity (0.1 is 10%)

Throws:

org.apache.commons.math.MathException - if a MathException occurs

getSpecificityAt

double getSpecificityAt(double sensitivity)
                 throws org.apache.commons.math.MathException

Returns the 1-specificity at a given sensitivity.

Parameters:

sensitivity - the sensitivity (0.1 is 10%)

Returns:

the corresponding 1-specificity (0.1 is 10%)

Throws:

org.apache.commons.math.MathException - if a MathException occurs

getxYValues

double[][] getxYValues()
                throws org.apache.commons.math.MathException

Returns xy values to draw the curve.

Returns:

xy values to draw the curve

Throws:

org.apache.commons.math.MathException - if a MathException occurs

getAuc

double getAuc()
       throws org.apache.commons.math.MathException

Returns an estimation of the area under the curve.

Returns:

an estimation of the area under the curve

Throws:

org.apache.commons.math.MathException - if a MathException occurs