3.2.4: 2013-12-06

net.sf.basedb.util.ma
Class Log2MACalculator

java.lang.Object
  extended by net.sf.basedb.util.ma.MACalculator
      extended by net.sf.basedb.util.ma.Log2MACalculator

public class Log2MACalculator
extends MACalculator

MA calculator for log2-transformed spot intensity values.

Since:
3.2.4
Author:
nicklas

Field Summary
(package private) static double INV_LOG2_10x2
           
 
Fields inherited from class net.sf.basedb.util.ma.MACalculator
INV_LN10x2, INV_LN2
 
Constructor Summary
Log2MACalculator()
           
 
Method Summary
 double[] correct(double ch1, double ch2, double factor)
          ch1 = old - factor ch2 = old + factor
 double[] MA(double ch1, double ch2)
          M = ch1 - ch2 A = (ch1 + ch2) / (2 * log2(10))
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

INV_LOG2_10x2

static final double INV_LOG2_10x2
Constructor Detail

Log2MACalculator

public Log2MACalculator()
Method Detail

MA

public double[] MA(double ch1,
                   double ch2)
M = ch1 - ch2 A = (ch1 + ch2) / (2 * log2(10))

Overrides:
MA in class MACalculator
Returns:
An array with [0] = M, [1] = A

correct

public double[] correct(double ch1,
                        double ch2,
                        double factor)
ch1 = old - factor ch2 = old + factor

Overrides:
correct in class MACalculator
Returns:
An array with [0] = newCh1, [1] = newCh2

3.2.4: 2013-12-06