Package com.fa993.utils

Class PeakWidth

java.lang.Object

com.fa993.utils.PeakWidth

public class PeakWidth
extends Object

Utility class for calculating the widths of peaks in a given dataset. The calculations are based on the prominence data and relative height.

Constructor Summary

Constructors

Constructor	Description
PeakWidth()

Method Summary

Modifier and Type	Method	Description
static PeakWidthsOutput	call(double[] x, int[] peaks, double relHeight, double[] prominences, int[] leftBases, int[] rightBases)	Calculates the widths of peaks in the input data array using prominence information and a specified relative height.

Methods inherited from class java.lang.Object

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

Constructor Detail

PeakWidth

public PeakWidth()

Method Detail

call

public static PeakWidthsOutput call(double[] x,
                                    int[] peaks,
                                    double relHeight,
                                    double[] prominences,
                                    int[] leftBases,
                                    int[] rightBases)

Calculates the widths of peaks in the input data array using prominence information and a specified relative height. The method determines the left and right intersection points of the peaks at the specified height and calculates the width for each peak.

Parameters:

x - the input data array containing the signal values.

peaks - the indices of the peaks in the signal.

relHeight - the relative height (a fraction of the prominence) at which to calculate widths.

prominences - the prominence values corresponding to the peaks.

leftBases - the indices of the left bases for the peaks.

rightBases - the indices of the right bases for the peaks.

Returns:

a PeakWidthsOutput object containing the calculated widths, intersection points, and heights for the peaks.

Throws:

IllegalArgumentException - if:

• `relHeight` is less than 0
• The arrays `peaks`, `prominences`, `leftBases`, or `rightBases` do not have the same length
• The prominence data is invalid for any peak