HilbertTransform (jaicore-ml 0.1.6 API)

java.lang.Object
- ai.libs.jaicore.ml.tsc.filter.transform.ATransformFilter
- - ai.libs.jaicore.ml.tsc.filter.transform.HilbertTransform

All Implemented Interfaces:

IFilter
```
public class HilbertTransform
extends ATransformFilter
```
Calculates the Hilbert transform of a time series. For this implementation, the definition as given in "Non-isometric transforms in time series classification using DTW" by Tomasz Gorecki and Maciej Luczak (2014) is used. The Hilbert transform f = {f(k): k = 1 to n} of a time series T = {T(i): i = 1 to n } is defined as f(k) = sum_{i=1, i!=k}^{n} f(i) / (k-i).

- Constructor Summary
  
  Constructors
  Constructor Description
  
  HilbertTransform()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  double[] transform(double[] input)
  This function transforms only a single instance.
  - Methods inherited from class ai.libs.jaicore.ml.tsc.filter.transform.ATransformFilter
    fit, fit, fit, fitTransform, fitTransform, fitTransform, transform, transform
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - HilbertTransform
```
public HilbertTransform()
```
- Method Detail
  - transform
```
public double[] transform(double[] input)
```
    Description copied from interface: IFilter
    
    This function transforms only a single instance.
    
    Parameters:
    
    input - the to transform instance
    
    Returns:
    
    the transformed instance