2019-02-17 16:10:03 +08:00
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.. py:currentmodule:: hikyuu.trade_sys
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.. highlightlang:: python
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市场环境判定策略
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================
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内建市场环境判定策略
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--------------------
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.. py:function:: EV_TwoLine(fast, slow[, market = 'SH'])
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快慢线判断策略，市场指数的快线大于慢线时，市场有效，否则无效。
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2019-05-18 22:16:10 +08:00
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:param Indicator fast: 快线指标
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:param Indicator slow: 慢线指标
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2019-02-17 16:10:03 +08:00
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:param string market: 市场名称
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自定义市场环境判定策略
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----------------------
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自定义市场环境判定策略接口：
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* :py:meth:`EnvironmentBase._calculate` - 【必须】子类计算接口
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* :py:meth:`EnvironmentBase._clone` - 【必须】克隆接口
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* :py:meth:`EnvironmentBase._reset` - 【可选】重载私有变量
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市场环境判定策略基类
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--------------------
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.. py:class:: EnvironmentBase
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市场环境判定策略基类
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.. py:attribute:: name 名称
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.. py:method:: __init__(self[, name='EnvironmentBase'])
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初始化构造函数
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:param str name: 名称
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.. py:method:: getParam(self, name)
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获取指定的参数
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:param str name: 参数名称
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:return: 参数值
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:raises out_of_range: 无此参数
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.. py:method:: setParam(self, name, value)
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设置参数
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:param str name: 参数名称
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:param value: 参数值
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:type value: int | bool | float | string
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:raises logic_error: Unsupported type! 不支持的参数类型
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.. py:method:: setQuery(self, query)
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设置查询条件
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2020-06-30 23:27:23 +08:00
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:param Query query: 查询条件
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2019-02-17 16:10:03 +08:00
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.. py:method:: getQuery(self)
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获取查询条件
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:return: 查询条件
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2020-06-30 23:27:23 +08:00
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:rtype: Query
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2019-02-17 16:10:03 +08:00
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.. py:method:: isValid(self, datetime)
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指定时间系统是否有效
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:param Datetime datetime: 指定时间
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:return: True 有效 | False 无效
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.. py:method:: _addValid(self, datetime)
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加入有效时间，在_calculate中调用
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:param Datetime datetime: 有效时间
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.. py:method:: reset(self)
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复位操作
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.. py:method:: clone(self)
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克隆操作
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.. py:method:: _calculate(self)
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【重载接口】子类计算接口
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.. py:method:: _reset(self)
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【重载接口】子类复位接口，用于复位内部私有变量
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.. py:method:: _clone(self)
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【重载接口】子类克隆接口
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