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Class JSci.maths.wavelet.Cosine 

java.lang.Object
   |
   +----JSci.maths.wavelet.MultiscaleFunction
           |
           +----JSci.maths.wavelet.Cosine
public final class Cosine
extends MultiscaleFunction
implements NumericalConstants, Cloneable
This class is used to be able to mix the wavelet and cosine transforms. It is in fact a normalised cosine.

Constructor Index

o Cosine(int, int)

Method Index

o clone()
Return a copy of this object
o dimension()
Tells you how many samples you'll get from this function
o dimension(int)
Tells you how many samples you'll get from this function (will not depend on the parameter)
o equals(Object)
Check if another object is equal to this Cosine object
o evaluate()
Return as an array the sampled values of the function
o evaluate(int)
Return as an array the sampled values of the function
o getFilterType()
This method is used to compute how the number of scaling functions changes from on scale to the other.
o getFrequency()
o mass(double, double, int)
Compute the mass (integral)
o toString()
Return a String representation of the object

Constructors

o Cosine 
 public Cosine(int N0,
               int FREQ)

Methods

o toString 
 public String toString()
Return a String representation of the object

Overrides:
toString in class MultiscaleFunction
o equals 
 public boolean equals(Object a)
Check if another object is equal to this Cosine object

Overrides:
equals in class MultiscaleFunction
o getFrequency 
 public int getFrequency()
o evaluate 
 public double[] evaluate()
Return as an array the sampled values of the function

o dimension 
 public int dimension(int jfin)
Tells you how many samples you'll get from this function (will not depend on the parameter)

Overrides:
dimension in class MultiscaleFunction
o dimension 
 public int dimension()
Tells you how many samples you'll get from this function

Overrides:
dimension in class MultiscaleFunction
o clone 
 public Object clone()
Return a copy of this object

Overrides:
clone in class MultiscaleFunction
o evaluate 
 public double[] evaluate(int j1)
Return as an array the sampled values of the function

Parameters:
j - number of iterations (doesn't do anything)
Overrides:
evaluate in class MultiscaleFunction
o mass 
 public double mass(double a,
                    double b,
                    int jfin)
Compute the mass (integral)

Parameters:
a - left boundary of the interval
b - right boundary of the interval
jfin - number of iterations to consider (precision)
Overrides:
mass in class MultiscaleFunction
o getFilterType 
 public int getFilterType()
This method is used to compute how the number of scaling functions changes from on scale to the other. Basically, if you have k scaling function and a Filter of type t, you'll have 2*k+t scaling functions at the next scale (dyadic case). Notice that this method assumes that one is working with the dyadic grid while the method "previousDimension" define in the interface "Filter" doesn't.

Overrides:
getFilterType in class MultiscaleFunction 
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