Ejemplo n.º 1
0
 public DWTData getDR(double[] valuearray) {
   Transform t =
       new Transform(new AncientEgyptianDecomposition(new FastWaveletTransform(new Haar1())));
   DWTData tsHilb = new DWTData(t.forward(valuearray));
   // This calculates log_2(x).
   double resolution = Math.log(windowsize) / Math.log(2);
   for (int i = 0; i < resolution; i++) {
     tsHilb = removeHighestFrequency(tsHilb);
   }
   return tsHilb;
 }
Ejemplo n.º 2
0
 /**
  * Here we use double array as the ouput data structure to store the DWT results in the Hilbert
  * Space.
  *
  * @param ts
  * @return a double array containing the DWT result in Hilbert Space.
  */
 @Override
 public DWTData getDR(TimeSeries ts) {
   double tslength = Math.log(ts.size() / windowsize) / Math.log(2);
   // TODO reconstruct this to have a more flexible solution.
   if (tslength % 1 != 0) {
     logger.info("The input Time Series length does not match the windowsize");
     //			return null;
   }
   LinkedList<Double> tsvalues = DataListOperator.getInstance().getValueList(ts);
   double[] valuearray = DataListOperator.getInstance().linkedDoubleListToArray(tsvalues);
   return getDR(valuearray);
 }