369 lines
15 KiB
Python
369 lines
15 KiB
Python
# =====================================================================================
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# 以下是新增的 ValueMigrationStrategy 策略代码
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# =====================================================================================
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from collections import deque
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from datetime import timedelta, time
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import numpy as np
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import pandas as pd
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from typing import List, Any, Optional, Dict
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import talib
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from src.core_data import Bar, Order
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from src.strategies.ValueMigrationStrategy.data_class import ProfileStats, calculate_profile_from_bars
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from src.strategies.base_strategy import Strategy
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# = ===================================================================
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# 全局辅助函数 (Global Helper Functions)
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# 将这些函数放在文件顶部，以便所有策略类都能调用
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# =====================================================================
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def compute_price_volume_distribution(bars: List[Bar], tick_size: float) -> Optional[pd.Series]:
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"""
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[全局函数] 从K线数据中计算出原始的价格-成交量分布。
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"""
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if not bars:
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return None
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data = []
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# 为了性能，我们只处理有限数量的bars，防止内存问题
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# 在实际应用中，更高效的实现是必要的
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for bar in bars[-500:]: # 添加一个安全限制
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price_range = np.arange(bar.low, bar.high + tick_size, tick_size)
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if len(price_range) == 0 or bar.volume == 0: continue
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# 将成交量近似分布到K线覆盖的每个tick上
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volume_per_tick = bar.volume / len(price_range)
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for price in price_range:
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data.append({'price': price, 'volume': volume_per_tick})
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if not data:
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return None
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df = pd.DataFrame(data)
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if df.empty:
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return None
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return df.groupby('price')['volume'].sum().sort_index()
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# =====================================================================================
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# 以下是最终的、以性能为首要考量的、超高速VP计算模块
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# =====================================================================================
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def compute_fast_volume_profile(bars: List[Bar], tick_size: float) -> Optional[pd.Series]:
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"""
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[全局核心函数] 使用“离散重心累加”法，超高速地从K线数据中构建成交量剖面图。
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该方法将每根K线的全部成交量，一次性地归于其加权中心价
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(HLC/3)所对齐的tick上。这在保持核心逻辑精确性的同时，
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实现了计算速度的数量级提升。
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Args:
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bars: 用于计算的K线历史数据。
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tick_size: 合约的最小变动价位。
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Returns:
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一个代表成交量剖面图的Pandas Series，或None。
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"""
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if not bars:
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return None
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# 使用字典进行累加，这是Python中最快的操作之一
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volume_dict = {}
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for bar in bars:
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if bar.volume == 0:
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continue
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# 1. 计算K线的加权中心价
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center_price = (bar.high + bar.low + bar.close) / 3
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# 2. 将中心价对齐到最近的tick
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aligned_price = round(center_price / tick_size) * tick_size
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# 3. 将该Bar的全部成交量，一次性累加到对齐后的价格点上
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volume_dict[aligned_price] = volume_dict.get(aligned_price, 0) + bar.volume
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if not volume_dict:
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return None
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# 将最终结果转换为一个有序的Pandas Series
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return pd.Series(volume_dict).sort_index()
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# 确保在文件顶部导入
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from scipy.signal import find_peaks
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def find_hvns_with_distance(price_volume_dist: pd.Series, distance_in_ticks: int) -> List[float]:
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"""
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[全局函数] 使用峰值查找算法，根据峰值间的最小距离来识别HVNs。
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Args:
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price_volume_dist: 价格-成交量分布序列。
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distance_in_ticks: 两个HVN之间必须间隔的最小tick数量。
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Returns:
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一个包含所有被识别出的HVN价格的列表。
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"""
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if price_volume_dist.empty or len(price_volume_dist) < 3:
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return []
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# distance参数确保找到的峰值之间至少相隔N个点
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peaks_indices, _ = find_peaks(price_volume_dist.values, distance=distance_in_ticks)
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if len(peaks_indices) == 0:
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return [price_volume_dist.idxmax()] # 默认返回POC
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hvn_prices = price_volume_dist.index[peaks_indices].tolist()
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return hvn_prices
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def find_hvns_strict(price_volume_dist: pd.Series, window_radius: int) -> List[float]:
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"""
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[全局函数] 使用严格的“滚动窗口最大值”定义来识别HVNs。
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一个点是HVN，当且仅当它的成交量大于其左右各 `window_radius` 个点的成交量。
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Args:
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price_volume_dist: 价格-成交量分布序列。
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window_radius: 定义了检查窗口的半径 (即您所说的 N)。
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Returns:
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一个包含所有被识别出的HVN价格的列表。
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"""
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if price_volume_dist.empty or window_radius == 0:
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return [price_volume_dist.idxmax()] if not price_volume_dist.empty else []
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# 1. 确保价格序列是连续的，用0填充缺失的ticks
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full_price_range = np.arange(price_volume_dist.index.min(),
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price_volume_dist.index.max() + price_volume_dist.index.to_series().diff().min(),
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price_volume_dist.index.to_series().diff().min())
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continuous_dist = price_volume_dist.reindex(full_price_range, fill_value=0)
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# 2. 计算滚动窗口最大值
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window_size = 2 * window_radius + 1
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rolling_max = continuous_dist.rolling(window=window_size, center=True).max()
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# 3. 找到那些自身成交量就等于其窗口最大值的点
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is_hvn = (continuous_dist == rolling_max) & (continuous_dist > 0)
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hvn_prices = continuous_dist[is_hvn].index.tolist()
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# 4. 处理平顶山：如果连续多个点都是HVN，只保留中间那个
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if not hvn_prices:
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return [price_volume_dist.idxmax()] # 如果找不到，返回POC
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final_hvns = []
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i = 0
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while i < len(hvn_prices):
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# 找到一个连续HVN块
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j = i
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while j + 1 < len(hvn_prices) and (hvn_prices[j + 1] - hvn_prices[j]) < (
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2 * price_volume_dist.index.to_series().diff().min()):
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j += 1
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# 取这个连续块的中间点
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middle_index = i + (j - i) // 2
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final_hvns.append(hvn_prices[middle_index])
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i = j + 1
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return final_hvns
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# 确保在文件顶部导入
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from scipy.signal import find_peaks
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# =====================================================================================
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# 以下是V2版本的、简化了状态管理的 HVNPullbackStrategy 代码
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# =====================================================================================
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class ValueMigrationStrategy(Strategy):
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"""
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一个基于动态HVN突破后回测的量化交易策略。(V2: 简化状态管理)
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V2版本简化了内部状态管理，移除了基于order_id的复杂元数据传递，
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使用更直接、更健壮的单一状态变量来处理挂单的止盈止损参数，
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完美适配“单次单持仓”的策略逻辑。
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"""
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def __init__(
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self,
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context: Any,
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main_symbol: str,
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enable_log: bool,
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trade_volume: int,
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tick_size: float = 1,
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profile_period: int = 100,
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recalc_interval: int = 4,
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hvn_distance_ticks: int = 20,
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entry_offset_atr: float = 0.0,
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stop_loss_atr: float = 1.0,
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take_profit_atr: float = 2.0,
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atr_period: int = 14,
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order_direction=None,
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indicators=[None, None],
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):
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super().__init__(context, main_symbol, enable_log)
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if order_direction is None:
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order_direction = ['BUY', 'SELL']
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self.trade_volume = trade_volume
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self.tick_size = tick_size
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self.profile_period = profile_period
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self.recalc_interval = recalc_interval
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self.hvn_distance_ticks = hvn_distance_ticks
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self.entry_offset_atr = entry_offset_atr
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self.stop_loss_atr = stop_loss_atr
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self.take_profit_atr = take_profit_atr
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self.atr_period = atr_period
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self.order_direction = order_direction
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self.indicator_long = indicators[0]
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self.indicator_short = indicators[1]
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self.main_symbol = main_symbol
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self.order_id_counter = 0
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self._bar_counter = 0
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self._cached_hvns: List[float] = []
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# --- V2: 简化的状态管理 ---
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self._pending_sl_price: Optional[float] = None
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self._pending_tp_price: Optional[float] = None
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def on_open_bar(self, open_price: float, symbol: str):
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self.symbol = symbol
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self._bar_counter += 1
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bar_history = self.get_bar_history()
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required_len = max(self.profile_period, self.atr_period) + 1
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if len(bar_history) < required_len:
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return
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# --- 1. 取消所有挂单并重置挂单状态 ---
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self.cancel_all_pending_orders(self.symbol)
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# self._pending_sl_price = None
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# self._pending_tp_price = None
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# --- 2. 管理现有持仓 ---
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position_volume = self.get_current_positions().get(self.symbol, 0)
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if position_volume != 0:
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self.manage_open_position(position_volume, open_price)
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return
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# --- 3. 周期性地计算HVNs ---
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if self._bar_counter % self.recalc_interval == 1:
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profile_bars = bar_history[-self.profile_period:]
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dist = compute_price_volume_distribution(profile_bars, self.tick_size)
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# dist = compute_fast_volume_profile(profile_bars, self.tick_size)
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if dist is not None and not dist.empty:
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# self._cached_hvns = find_hvns_with_distance(dist, self.hvn_distance_ticks)
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self._cached_hvns = find_hvns_strict(dist, self.hvn_distance_ticks)
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self.log(f"New HVNs identified at: {[f'{p:.2f}' for p in self._cached_hvns]}")
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if not self._cached_hvns: return
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# --- 4. 评估新机会 (挂单逻辑) ---
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self.evaluate_entry_signal(bar_history)
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def manage_open_position(self, volume: int, current_price: float):
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"""主动管理已开仓位的止盈止损。"""
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# # [V2 关键逻辑]: 检测是否为新持仓
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# # 如果这是一个新持仓，并且我们有预设的止盈止损，就将其存入
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# if self._pending_sl_price is not None and self._pending_tp_price is not None:
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# meta = {'sl_price': self._pending_sl_price, 'tp_price': self._pending_tp_price}
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# self.position_meta = meta
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# self.log(f"新持仓确认。已设置TP/SL: {meta}")
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# else:
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# # 这种情况理论上不应发生，但作为保护
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# self.log("Error: New position detected but no pending TP/SL values found.")
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# self.close_position("CLOSE_LONG" if volume > 0 else "CLOSE_SHORT", abs(volume))
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# return
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# [常规逻辑]: 检查止盈止损
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sl_price = self._pending_sl_price
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tp_price = self._pending_tp_price
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if volume > 0: # 多头
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if current_price <= sl_price or current_price >= tp_price:
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action = "止损" if current_price <= sl_price else "止盈"
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self.log(f"多头{action}触发 at {current_price:.2f}")
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self.close_position("CLOSE_LONG", abs(volume), current_price)
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elif volume < 0: # 空头
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if current_price >= sl_price or current_price <= tp_price:
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action = "止损" if current_price >= sl_price else "止盈"
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self.log(f"空头{action}触发 at {current_price:.2f}")
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self.close_position("CLOSE_SHORT", abs(volume), current_price)
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def evaluate_entry_signal(self, bar_history: List[Bar]):
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prev_close = bar_history[-2].close
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current_close = bar_history[-1].close
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highs = np.array([b.high for b in bar_history], dtype=float)
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lows = np.array([b.low for b in bar_history], dtype=float)
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closes = np.array([b.close for b in bar_history], dtype=float)
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current_atr = talib.ATR(highs, lows, closes, self.atr_period)[-1]
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if current_atr < self.tick_size: return
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for hvn in sorted(self._cached_hvns):
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# (为了简洁，买卖逻辑合并)
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direction = None
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if "BUY" in self.order_direction and (prev_close < hvn < current_close):
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direction = "SELL"
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pass_filter = self.indicator_long is None or self.indicator_long.is_condition_met(
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*self.get_indicator_tuple())
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elif "SELL" in self.order_direction and (prev_close > hvn > current_close):
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direction = "BUY"
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pass_filter = self.indicator_short is None or self.indicator_short.is_condition_met(
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*self.get_indicator_tuple())
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else:
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continue # 没有触发穿越
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if direction and pass_filter:
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offset = self.entry_offset_atr * current_atr
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limit_price = hvn + offset if direction == "BUY" else hvn - offset
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self.log(f"价格穿越HVN({hvn:.2f}). 在 {limit_price:.2f} 挂限价{direction}单。")
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# self.send_hvn_limit_order(direction, limit_price + 1 if direction == 'BUY' else -1, current_atr)
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self.send_hvn_limit_order(direction, limit_price, current_atr)
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return # 每次只挂一个单
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def send_hvn_limit_order(self, direction: str, limit_price: float, entry_atr: float):
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print(limit_price, self.get_current_time())
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# [V2 关键逻辑]: 直接更新实例变量
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self._pending_sl_price = limit_price - self.stop_loss_atr * entry_atr if direction == "BUY" else limit_price + self.stop_loss_atr * entry_atr
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self._pending_tp_price = limit_price + self.take_profit_atr * entry_atr if direction == "BUY" else limit_price - self.take_profit_atr * entry_atr
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order_id = f"{self.symbol}_{direction}_LIMIT_{self.order_id_counter}"
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self.order_id_counter += 1
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# order = Order(
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# id=order_id, symbol=self.symbol, direction=direction, volume=self.trade_volume,
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# price_type="LIMIT", limit_price=limit_price, submitted_time=self.get_current_time(),
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# offset="OPEN"
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# )
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order = Order(
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id=order_id, symbol=self.symbol, direction=direction, volume=self.trade_volume,
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price_type="STOP", stop_price=limit_price, submitted_time=self.get_current_time(),
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offset="OPEN"
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)
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self.send_order(order)
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def close_position(self, direction: str, volume: int, current_price: float):
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self.send_market_order(direction, volume, current_price)
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def send_market_order(self, direction: str, volume: int, current_price: float, offset: str = "CLOSE"):
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order_id = f"{self.symbol}_{direction}_{offset}_{self.get_current_time().strftime('%Y%m%d%H%M%S')}_{self.order_id_counter}"
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self.order_id_counter += 1
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order = Order(
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id=order_id, symbol=self.symbol, direction=direction, volume=volume,
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price_type="MARKET", submitted_time=self.get_current_time(), offset=offset, limit_price=current_price
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)
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self.send_order(order)
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