gov.nist.microanalysis.EPQLibrary
Class SpectrumMath

java.lang.Object
  gov.nist.microanalysis.EPQLibrary.BaseSpectrum
      gov.nist.microanalysis.EPQLibrary.DerivedSpectrum
          gov.nist.microanalysis.EPQLibrary.SpectrumMath

All Implemented Interfaces:

ISpectrumData, java.lang.Comparable

public class SpectrumMath
extends DerivedSpectrum

SpectrumMath makes it easy to add or subtract a multiple of the counts in one spectrum from another spectrum. Good for creating sum spectra or residual spectra.

Copyright: Pursuant to title 17 Section 105 of the United States Code this software is not subject to copyright protection and is in the public domain

Institution: National Institute of Standards and Technology

Version:

1.0

Author:

nritchie

Field Summary

Fields inherited from class gov.nist.microanalysis.EPQLibrary.DerivedSpectrum

mSource

Fields inherited from class gov.nist.microanalysis.EPQLibrary.BaseSpectrum

mHashCode, NULL_HASH, NullSpectrum

Constructor Summary

SpectrumMath(ISpectrumData src)
Constructs a SpectrumMath

Method Summary

void	add(ISpectrumData src, double k) add - Add k times counts in the specified spectrum into the sum spectrum.
double	getCounts(int i) getCounts - Return the counts in the i-th channel
void	subtract(ISpectrumData src, double k) add - Subtract k times the counts from the specified spectrum from the sum spectrum.

Methods inherited from class gov.nist.microanalysis.EPQLibrary.DerivedSpectrum

equals, getBaseSpectrum, getChannelCount, getChannelWidth, getProperties, getZeroOffset, isAlreadyDerivedFrom, isDerivedFrom

Methods inherited from class gov.nist.microanalysis.EPQLibrary.BaseSpectrum

compareTo, hashCode, initializeSpectrumIndex, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SpectrumMath

public SpectrumMath(ISpectrumData src)

Constructs a SpectrumMath

Parameters:

src -

Method Detail

add

public void add(ISpectrumData src,
                double k)

add - Add k times counts in the specified spectrum into the sum spectrum.

Parameters:

src - ISpectrumData

k - double

subtract

public void subtract(ISpectrumData src,
                     double k)

add - Subtract k times the counts from the specified spectrum from the sum spectrum.

Parameters:

src - ISpectrumData

k -

getCounts

public double getCounts(int i)

Description copied from interface: ISpectrumData

getCounts - Return the counts in the i-th channel

Returns:

double