### HT_DCPERIOD - Hilbert Transform - Dominant Cycle Period
> 函數名：HT_DCPERIOD
名稱： 希爾伯特變換-主導周期
簡介：將價格作為信息信號，計算價格處在的周期的位置，作為擇時的依據。
[文庫文檔](https://wenku.baidu.com/view/0e35f6eead51f01dc281f18e.md)
NOTE: The ``HT_DCPERIOD`` function has an unstable period.
```python
real = HT_DCPERIOD(close)
```
Learn more about the Hilbert Transform - Dominant Cycle Period at [tadoc.org](http://www.tadoc.org/indicator/HT_DCPERIOD.htm).
