calcWR static method

void calcWR(List<KLineEntity> dataList)

Implementation

static void calcWR(List<KLineEntity> dataList) {
  double r;
  for (int i = 0; i < dataList.length; i++) {
    KLineEntity entity = dataList[i];
    int startIndex = i - 14;
    if (startIndex < 0) {
      startIndex = 0;
    }
    double max14 = double.minPositive;
    double min14 = double.maxFinite;
    for (int index = startIndex; index <= i; index++) {
      max14 = max(max14, dataList[index].high);
      min14 = min(min14, dataList[index].low);
    }
    if (i < 13) {
      entity.r = -10;
    } else {
      r = -100 * (max14 - dataList[i].close) / (max14 - min14);
      if (r.isNaN) {
        entity.r = null;
      } else {
        entity.r = r;
      }
    }
  }
}