Beispiel #1
0
  public static Map<Integer, List<Double>> getDerivative(
      List<Double> tList, List<Double> tauList, List<Double> pefList) {
    Map<Integer, List<Double>> resultMap = new HashMap<>(tList.size());
    List<Double> sumOfExponent = GeneratorHelper.generateData(tauList, pefList, false, false);
    int numOfParam = 0;

    for (int i = 0; i < tauList.size(); i++) {
      List<Double> tauModList = new ArrayList<>(tauList);
      List<Double> pefModList = new ArrayList<>(pefList);
      Double tauH = delta * tauList.get(i);
      Double pefH = delta * pefList.get(i);

      tauModList.set(i, tauModList.get(i) + tauH);
      List<Double> tauSOEModList = GeneratorHelper.generateData(tauModList, pefList, false, false);

      pefModList.set(i, pefModList.get(i) + pefH);
      List<Double> pefSOEModList = GeneratorHelper.generateData(tauList, pefModList, false, false);

      resultMap.put(numOfParam++, getDifference(tauSOEModList, sumOfExponent, tauH));
      resultMap.put(numOfParam++, getDifference(pefSOEModList, sumOfExponent, pefH));
    }
    return resultMap;
  }
Beispiel #2
0
 public static List<Double> getChiSquarePartDiff(
     int m,
     List<Double> feList,
     List<Double> tList,
     List<Double> tauTheorList,
     List<Double> peTheorList) {
   int size = tList.size();
   List<Double> result = new ArrayList<>(m);
   Map<Integer, List<Double>> partDivOfSumOfExp = getDerivative(tList, tauTheorList, peTheorList);
   List<Double> ftList = GeneratorHelper.generateData(tauTheorList, peTheorList, false, false);
   for (int i = 0; i < m; i++) {
     double sum = 0;
     List<Double> param =
         partDivOfSumOfExp.get(i); // Частная производная по i параметру во всех точках t.
     for (int j = 0; j < size; j++) {
       if (feList.get(j) == 0) {
         continue;
       }
       sum += (feList.get(j) - ftList.get(j)) * param.get(j) / feList.get(j);
     }
     result.add(sum);
   }
   return result;
 }