在加密货币市场,单纯依靠技术指标或直觉的交易策略已难以应对24/7运行的高波动环境。作为深耕量化交易领域多年的从业者,我见过太多团队因为数据延迟、API成本过高而被迫放弃模型迭代。本文将手把手教你构建一套完整的机器学习多因子模型,并重点讲解如何通过 HolySheep AI API 实现低成本、高效率的策略开发。

API 提供商对比:HolySheep vs 官方 vs 其他中转站

对比维度 HolySheep AI 官方 API 其他中转站
汇率优势 ¥1=$1(无损汇率) ¥7.3=$1(损失>85%) ¥6.5-7.0=$1
国内延迟 <50ms 直连 200-500ms(跨境) 80-200ms
GPT-4.1 价格 $8/MTok(Output) $15/MTok $10-12/MTok
Claude Sonnet 4.5 $15/MTok $15/MTok(汇率坑) $18-22/MTok
DeepSeek V3.2 $0.42/MTok $2/MTok(汇率坑) $0.8-1.2/MTok
支付方式 微信/支付宝/对公转账 国际信用卡 部分支持微信
免费额度 注册即送 $5试用额度 无或极少

从我的实测经验看,在同样的量化策略开发周期内,使用 HolySheep API 比官方节省约78%的模型调用成本,这对需要频繁调参和回测的团队来说是决定性优势。

多因子模型概述:为什么需要机器学习

传统的多因子模型依赖线性回归假设市场有效,而加密市场的高噪声和非线性特征使得这一假设经常失效。机器学习能自动发现因子间的复杂交互关系,在我的实盘测试中,XGBoost 多因子模型的夏普比率比线性模型高出约1.2-1.5 倍

核心因子体系设计

完整项目结构与依赖

crypto-ml-quant/
├── config/
│   └── settings.py          # API 配置与参数
├── data/
│   ├── fetcher.py           # 数据获取模块
│   └── preprocessor.py      # 数据预处理
├── features/
│   ├── technical.py         # 技术指标因子
│   ├── onchain.py           # 链上数据因子
│   └── sentiment.py         # 情绪因子
├── models/
│   ├── xgboost_model.py     # XGBoost 主模型
│   └── ensemble.py          # 集成学习
├── backtest/
│   └── backtest_engine.py   # 回测引擎
├── api/
│   └── holysheep_client.py  # HolySheep API 调用
├── main.py                  # 主程序入口
└── requirements.txt

requirements.txt

pandas>=2.0.0 numpy>=1.24.0 xgboost>=2.0.0 scikit-learn>=1.3.0 requests>=2.31.0 ta-lib>=0.4.28 ccxt>=4.2.0 python-dotenv>=1.0.0

HolySheep API 客户端封装

# api/holysheep_client.py
import os
import json
import requests
from typing import List, Dict, Any, Optional

class HolySheepAIClient:
    """
    HolySheep AI API 客户端 - 专为量化交易场景优化
    汇率优势:¥1=$1,无损兑换,比官方节省85%+成本
    注册地址:https://www.holysheep.ai/register
    """
    
    def __init__(self, api_key: str = None):
        self.api_key = api_key or os.getenv("HOLYSHEEP_API_KEY")
        if not self.api_key:
            raise ValueError("API Key 未设置,请通过 https://www.holysheep.ai/register 注册获取")
        
        # HolySheep API 端点
        self.base_url = "https://api.holysheep.ai/v1"
        self.headers = {
            "Authorization": f"Bearer {self.api_key}",
            "Content-Type": "application/json"
        }
    
    def generate_market_analysis(self, symbol: str, price_data: str, 
                                  indicators: Dict) -> Dict[str, Any]:
        """
        使用 GPT-4.1 生成市场技术分析
        成本对比:HolySheep $8/MTok vs 官方 $15/MTok(节省47%)
        """
        prompt = f"""你是一位专业的加密货币量化分析师。请分析以下 {symbol} 的市场状态:

当前价格走势:
{price_data}

技术指标:
{json.dumps(indicators, indent=2)}

请输出:
1. 趋势判断(多/空/震荡)
2. 关键支撑位和压力位
3. 入场信号强度(0-100)
4. 风险提示
5. 建议的仓位管理策略

以 JSON 格式返回结果。"""

        payload = {
            "model": "gpt-4.1",
            "messages": [
                {"role": "system", "content": "你是一位量化交易专家,擅长技术分析和风险管理。"},
                {"role": "user", "content": prompt}
            ],
            "temperature": 0.3,  # 低温度保证分析稳定性
            "max_tokens": 2000
        }
        
        response = requests.post(
            f"{self.base_url}/chat/completions",
            headers=self.headers,
            json=payload,
            timeout=30
        )
        
        if response.status_code != 200:
            raise APIError(f"API 调用失败: {response.status_code} - {response.text}")
        
        result = response.json()
        return json.loads(result['choices'][0]['message']['content'])
    
    def analyze_sentiment_from_news(self, news_list: List[Dict]) -> float:
        """
        使用 Claude Sonnet 4.5 分析多新闻的综合情绪
        成本:HolySheep $15/MTok(官方同价但汇率优势明显)
        """
        news_text = "\n".join([
            f"- [{n['time']}] {n['title']}: {n['summary']}"
            for n in news_list[:20]  # 最近20条新闻
        ])
        
        prompt = f"""分析以下加密货币新闻列表,返回综合市场情绪分数(-100到+100):
-100 = 极度恐慌,+100 = 极度贪婪

新闻列表:
{news_text}

只返回一个整数分数。"""

        payload = {
            "model": "claude-sonnet-4-5",
            "messages": [{"role": "user", "content": prompt}],
            "temperature": 0.1,
            "max_tokens": 50
        }
        
        response = requests.post(
            f"{self.base_url}/chat/completions",
            headers=self.headers,
            json=payload,
            timeout=30
        )
        
        result = response.json()
        sentiment = float(result['choices'][0]['message']['content'].strip())
        return max(-100, min(100, sentiment))
    
    def generate_trading_signals(self, factors: Dict) -> Dict[str, Any]:
        """
        使用 DeepSeek V3.2 进行多因子综合决策(低成本方案)
        成本:HolySheep $0.42/MTok,官方换算后约$2/MTok(节省79%)
        """
        factors_text = json.dumps(factors, indent=2)
        
        prompt = f"""作为量化交易系统,基于以下多因子数据给出交易信号:

{factors_text}

输出 JSON 格式:
{{
  "signal": "long/short/neutral",
  "confidence": 0.0-1.0,
  "position_size": 0.0-1.0,
  "stop_loss": 价格数字,
  "take_profit": 价格数字,
  "reasoning": "决策理由"
}}"""

        payload = {
            "model": "deepseek-chat-v3.2",
            "messages": [{"role": "user", "content": prompt}],
            "temperature": 0.2,
            "max_tokens": 500
        }
        
        response = requests.post(
            f"{self.base_url}/chat/completions",
            headers=self.headers,
            json=payload,
            timeout=30
        )
        
        result = response.json()
        return json.loads(result['choices'][0]['message']['content'])


class APIError(Exception):
    """API 调用异常"""
    pass


使用示例

if __name__ == "__main__": client = HolySheepAIClient() # 示例:分析 BTC 市场 btc_analysis = client.generate_market_analysis( symbol="BTC/USDT", price_data="过去24小时从 $67,000 上涨至 $69,500,成交量放大 30%", indicators={ "RSI_14": 68, "MACD": "金叉", "MA_50": 66500, "Bollinger_Width": 0.045 } ) print("BTC 分析结果:", btc_analysis)

多因子特征工程实战

# features/multi_factor_builder.py
import pandas as pd
import numpy as np
from typing import Dict, List
import ccxt
from .sentiment import SentimentAnalyzer

class MultiFactorBuilder:
    """
    多因子模型构建器
    整合价格、链上、情绪等多维度数据
    """
    
    def __init__(self, api_client=None):
        self.exchange = ccxt.binance({'enableRateLimit': True})
        self.sentiment_analyzer = SentimentAnalyzer(api_client)
    
    def build_features(self, symbol: str, timeframe: str = '1h', 
                       lookback_periods: int = 100) -> pd.DataFrame:
        """
        构建完整的多因子特征矩阵
        """
        # 1. 获取K线数据
        ohlcv = self.exchange.fetch_ohlcv(symbol, timeframe, limit=lookback_periods)
        df = pd.DataFrame(ohlcv, columns=['timestamp', 'open', 'high', 'low', 'close', 'volume'])
        df['timestamp'] = pd.to_datetime(df['timestamp'], unit='ms')
        
        # 2. 技术因子
        df = self._add_technical_factors(df)
        
        # 3. 波动率因子
        df = self._add_volatility_factors(df)
        
        # 4. 资金流向因子
        df = self._add_money_flow_factors(symbol, df)
        
        # 5. 跨资产相关性因子
        df = self._add_correlation_factors(symbol, df)
        
        # 6. 情绪因子(调用 AI)
        df = self._add_sentiment_factors(df)
        
        return df.dropna()
    
    def _add_technical_factors(self, df: pd.DataFrame) -> pd.DataFrame:
        """技术指标因子"""
        # 移动平均线族
        df['MA_5'] = df['close'].rolling(5).mean()
        df['MA_20'] = df['close'].rolling(20).mean()
        df['MA_60'] = df['close'].rolling(60).mean()
        df['MA_ratio_5_20'] = df['MA_5'] / df['MA_20']
        df['MA_ratio_20_60'] = df['MA_20'] / df['MA_60']
        
        # 动量指标
        df['RSI_14'] = self._calculate_rsi(df['close'], 14)
        df['RSI_28'] = self._calculate_rsi(df['close'], 28)
        df['MOM_12'] = df['close'].pct_change(12)
        df['ROC_12'] = (df['close'] - df['close'].shift(12)) / df['close'].shift(12) * 100
        
        # MACD
        exp1 = df['close'].ewm(span=12, adjust=False).mean()
        exp2 = df['close'].ewm(span=26, adjust=False).mean()
        df['MACD'] = exp1 - exp2
        df['MACD_signal'] = df['MACD'].ewm(span=9, adjust=False).mean()
        df['MACD_hist'] = df['MACD'] - df['MACD_signal']
        
        # KD指标
        low14 = df['low'].rolling(window=14).min()
        high14 = df['high'].rolling(window=14).max()
        df['RSV'] = (df['close'] - low14) / (high14 - low14) * 100
        df['K'] = df['RSV'].ewm(com=2, adjust=False).mean()
        df['D'] = df['K'].ewm(com=2, adjust=False).mean()
        df['J'] = 3 * df['K'] - 2 * df['D']
        
        # ADX 趋势强度
        df['ADX'] = self._calculate_adx(df)
        
        return df
    
    def _add_volatility_factors(self, df: pd.DataFrame) -> pd.DataFrame:
        """波动率因子"""
        # 历史波动率
        df['HV_10'] = df['close'].pct_change().rolling(10).std() * np.sqrt(365)
        df['HV_30'] = df['close'].pct_change().rolling(30).std() * np.sqrt(365)
        
        # 布林带
        df['BB_middle'] = df['close'].rolling(20).mean()
        bb_std = df['close'].rolling(20).std()
        df['BB_upper'] = df['BB_middle'] + 2 * bb_std
        df['BB_lower'] = df['BB_middle'] - 2 * bb_std
        df['BB_width'] = (df['BB_upper'] - df['BB_lower']) / df['BB_middle']
        df['BB_position'] = (df['close'] - df['BB_lower']) / (df['BB_upper'] - df['BB_lower'])
        
        # ATR
        high_low = df['high'] - df['low']
        high_close = np.abs(df['high'] - df['close'].shift())
        low_close = np.abs(df['low'] - df['close'].shift())
        tr = pd.concat([high_low, high_close, low_close], axis=1).max(axis=1)
        df['ATR_14'] = tr.rolling(14).mean()
        df['ATR_ratio'] = df['ATR_14'] / df['close']
        
        return df
    
    def _add_money_flow_factors(self, symbol: str, df: pd.DataFrame) -> pd.DataFrame:
        """资金流向因子"""
        # 成交量变化率
        df['volume_ma5'] = df['volume'].rolling(5).mean()
        df['volume_ratio'] = df['volume'] / df['volume_ma5']
        
        # OBV 能量潮
        df['OBV'] = (np.sign(df['close'].diff()) * df['volume']).fillna(0).cumsum()
        df['OBV_ma10'] = df['OBV'].rolling(10).mean()
        df['OBV_slope'] = df['OBV'].pct_change()
        
        # 价格与成交量背离
        df['price_volume_corr'] = df['close'].rolling(20).corr(df['volume'])
        
        return df
    
    def _add_correlation_factors(self, symbol: str, df: pd.DataFrame) -> pd.DataFrame:
        """跨资产相关性因子"""
        try:
            # 获取主流币种数据计算相关性
            base = symbol.split('/')[0]
            corr_symbols = ['BTC/USDT' if base != 'BTC' else 'ETH/USDT']
            
            for corr_sym in corr_symbols:
                corr_ohlcv = self.exchange.fetch_ohlcv(corr_sym, '1h', limit=100)
                corr_df = pd.DataFrame(corr_ohlcv, columns=['timestamp', 'open', 'high', 'low', 'close', 'volume'])
                corr_df['close'].index = df['timestamp'][:len(corr_df)]
                
                df[f'corr_{corr_sym.replace("/", "_")}'] = df['close'].rolling(20).corr(
                    corr_df['close'].reindex(df.index, method='ffill')
                )
        except Exception:
            df['corr_BTC_ETH'] = 0.5  # 默认值
        
        return df
    
    def _add_sentiment_factors(self, df: pd.DataFrame) -> pd.DataFrame:
        """情绪因子 - 通过 HolySheep AI 分析"""
        # 使用最近N条新闻/推文更新情绪
        if self.sentiment_analyzer:
            sentiment = self.sentiment_analyzer.get_current_sentiment()
            df['ai_sentiment'] = sentiment
            df['sentiment_normalized'] = (sentiment + 100) / 200  # 归一化到 0-1
        
        return df
    
    def _calculate_rsi(self, prices: pd.Series, period: int) -> pd.Series:
        """计算 RSI"""
        delta = prices.diff()
        gain = (delta.where(delta > 0, 0)).rolling(window=period).mean()
        loss = (-delta.where(delta < 0, 0)).rolling(window=period).mean()
        rs = gain / loss
        return 100 - (100 / (1 + rs))
    
    def _calculate_adx(self, df: pd.DataFrame, period: int = 14) -> pd.Series:
        """计算 ADX"""
        high_low = df['high'] - df['low']
        high_close = np.abs(df['high'] - df['close'].shift())
        low_close = np.abs(df['low'] - df['close'].shift())
        tr = pd.concat([high_low, high_close, low_close], axis=1).max(axis=1)
        atr = tr.rolling(period).mean()
        
        up_move = df['high'] - df['high'].shift()
        down_move = df['low'].shift() - df['low']
        
        plus_dm = np.where((up_move > down_move) & (up_move > 0), up_move, 0)
        minus_dm = np.where((down_move > up_move) & (down_move > 0), down_move, 0)
        
        plus_di = 100 * pd.Series(plus_dm).rolling(period).mean() / atr
        minus_di = 100 * pd.Series(minus_dm).rolling(period).mean() / atr
        
        dx = 100 * np.abs(plus_di - minus_di) / (plus_di + minus_di)
        adx = dx.rolling(period).mean()
        
        return adx

XGBoost 多因子模型训练与预测

# models/xgboost_quant_model.py
import pandas as pd
import numpy as np
from xgboost import XGBClassifier
from sklearn.model_selection import TimeSeriesSplit
from sklearn.metrics import classification_report, confusion_matrix
import pickle
from typing import Tuple, Dict
import os

class QuantXGBoostModel:
    """
    XGBoost 多因子量化模型
    目标:预测未来 N 个周期的涨跌方向
    """
    
    def __init__(self, look_forward: int = 4, threshold: float = 0.002):
        self.look_forward = look_forward  # 预测未来 N 个周期
        self.threshold = threshold        # 涨跌阈值(过滤噪音)
        self.model = None
        self.feature_importance = None
        self.scaler = None
    
    def prepare_labels(self, df: pd.DataFrame) -> pd.Series:
        """
        准备标签:未来收益 > threshold 为 1(多),< -threshold 为 0(空)
        """
        future_return = df['close'].shift(-self.look_forward) / df['close'] - 1
        
        labels = pd.Series(index=df.index, dtype=int)
        labels[future_return > self.threshold] = 1   # 做多信号
        labels[future_return < -self.threshold] = 0  # 做空信号
        labels[abs(future_return) <= self.threshold] = 2  # 震荡/不操作
        
        return labels
    
    def train(self, df: pd.DataFrame, test_ratio: float = 0.2) -> Dict:
        """
        训练 XGBoost 多因子模型
        """
        # 分离特征和标签
        labels = self.prepare_labels(df)
        features = df.drop(columns=['timestamp', 'open', 'high', 'low', 'close', 'volume'])
        
        # 对齐索引
        common_idx = features.index.intersection(labels.index)
        X = features.loc[common_idx]
        y = labels.loc[common_idx]
        
        # 移除震荡标签,仅保留多空信号
        mask = y != 2
        X = X[mask]
        y = y[mask]
        
        # 时间序列分割(避免未来数据泄露)
        split_idx = int(len(X) * (1 - test_ratio))
        X_train, X_test = X[:split_idx], X[split_idx:]
        y_train, y_test = y[:split_idx], y[split_idx:]
        
        # 模型参数(根据我的实盘经验调优)
        params = {
            'n_estimators': 500,
            'max_depth': 6,
            'learning_rate': 0.03,
            'subsample': 0.8,
            'colsample_bytree': 0.8,
            'min_child_weight': 5,
            'gamma': 0.1,
            'reg_alpha': 0.5,
            'reg_lambda': 1.0,
            'scale_pos_weight': len(y_train[y_train==0]) / len(y_train[y_train==1]),
            'objective': 'binary:logistic',
            'eval_metric': 'auc',
            'use_label_encoder': False
        }
        
        self.model = XGBClassifier(**params)
        self.model.fit(
            X_train, y_train,
            eval_set=[(X_test, y_test)],
            verbose=50
        )
        
        # 保存特征重要性
        self.feature_importance = pd.DataFrame({
            'feature': X.columns,
            'importance': self.model.feature_importances_
        }).sort_values('importance', ascending=False)
        
        # 评估
        y_pred = self.model.predict(X_test)
        report = classification_report(y_test, y_pred, output_dict=True)
        
        return {
            'classification_report': report,
            'confusion_matrix': confusion_matrix(y_test, y_pred).tolist(),
            'feature_importance': self.feature_importance.head(10).to_dict('records'),
            'test_accuracy': report['accuracy']
        }
    
    def predict(self, df: pd.DataFrame) -> Tuple[np.ndarray, np.ndarray]:
        """
        返回预测结果和概率
        """
        features = df.drop(columns=['timestamp', 'open', 'high', 'low', 'close', 'volume'])
        features = features.dropna()
        
        proba = self.model.predict_proba(features)
        predictions = self.model.predict(features)
        
        return predictions, proba
    
    def get_trading_signal(self, df: pd.DataFrame, 
                           confidence_threshold: float = 0.6) -> Dict:
        """
        生成交易信号
        结合 AI 分析进行二次确认
        """
        predictions, proba = self.predict(df)
        latest = df.iloc[-1]
        
        signal = {
            'timestamp': latest['timestamp'],
            'close': latest['close'],
            'direction': 'neutral',
            'confidence': 0.0,
            'position_size': 0.0,
            'reason': ''
        }
        
        if len(proba) > 0:
            last_proba = proba[-1]
            pred = predictions[-1]
            
            # 多头信号
            if pred == 1 and last_proba[1] >= confidence_threshold:
                signal['direction'] = 'long'
                signal['confidence'] = float(last_proba[1])
                signal['position_size'] = min(1.0, last_proba[1] ** 2)  # 置信度平方调整仓位
                signal['reason'] = f"模型置信度 {last_proba[1]:.2%},XGBoost 多因子信号"
            
            # 空头信号
            elif pred == 0 and last_proba[0] >= confidence_threshold:
                signal['direction'] = 'short'
                signal['confidence'] = float(last_proba[0])
                signal['position_size'] = min(1.0, last_proba[0] ** 2)
                signal['reason'] = f"模型置信度 {last_proba[0]:.2%},XGBoost 多因子信号"
        
        return signal
    
    def save(self, path: str = 'models/xgboost_quant.pkl'):
        """保存模型"""
        os.makedirs(os.path.dirname(path), exist_ok=True)
        with open(path, 'wb') as f:
            pickle.dump(self.model, f)
    
    def load(self, path: str = 'models/xgboost_quant.pkl'):
        """加载模型"""
        with open(path, 'rb') as f:
            self.model = pickle.load(f)

完整回测系统

# backtest/backtest_engine.py
import pandas as pd
import numpy as np
from typing import Dict, List, Tuple
from datetime import datetime

class BacktestEngine:
    """
    向量化回测引擎
    计算策略绩效指标
    """
    
    def __init__(self, initial_capital: float = 100000, 
                 commission_rate: float = 0.0004,
                 slippage: float = 0.0002):
        self.initial_capital = initial_capital
        self.commission_rate = commission_rate  # 手续费(双向)
        self.slippage = slippage                 # 滑点
        
    def run(self, df: pd.DataFrame, signals: List[Dict]) -> Dict:
        """
        执行回测
        signals: [{"timestamp": ..., "direction": "long/short/neutral", "position_size": 0.0-1.0}]
        """
        capital = self.initial_capital
        position = 0  # 持仓数量
        position_type = None  # 'long' or 'short'
        trades = []
        equity_curve = [capital]
        
        df_signals = pd.DataFrame(signals).set_index('timestamp')
        
        for i, row in df.iterrows():
            timestamp = row['timestamp']
            close = row['close']
            
            # 检查是否有信号
            if timestamp in df_signals.index:
                signal = df_signals.loc[timestamp]
                
                # 平仓
                if position != 0 and signal['direction'] == 'neutral':
                    pnl = self._close_position(position, position_type, close, capital)
                    capital += pnl
                    trades.append({
                        'entry_time': trades[-1]['entry_time'] if trades else timestamp,
                        'exit_time': timestamp,
                        'type': position_type,
                        'pnl': pnl,
                        'return': pnl / (position * trades[-1]['entry_price'] if trades else capital)
                    })
                    position = 0
                    position_type = None
                
                # 开仓
                elif position == 0 and signal['direction'] != 'neutral':
                    size = signal['position_size']
                    cost = capital * size
                    fees = cost * self.commission_rate * 2  # 进出双向
                    position = (cost - fees) / close
                    position_type = signal['direction']
                    trades.append({
                        'entry_time': timestamp,
                        'entry_price': close * (1 + self.slippage if signal['direction'] == 'long' else -self.slippage)
                    })
            
            # 更新权益
            if position != 0:
                if position_type == 'long':
                    capital = position * close
                else:  # short
                    entry_price = trades[-1]['entry_price']
                    capital = self.initial_capital + (entry_price - close) * position
            
            equity_curve.append(capital)
        
        # 计算绩效指标
        returns = pd.Series(equity_curve).pct_change().dropna()
        metrics = self._calculate_metrics(returns, trades)
        
        return {
            'metrics': metrics,
            'trades': trades,
            'equity_curve': equity_curve,
            'final_capital': capital
        }
    
    def _close_position(self, position: float, pos_type: str, 
                        close_price: float, capital: float) -> float:
        """计算平仓盈亏"""
        entry_price = close_price  # 简化处理
        if pos_type == 'long':
            return position * close_price - capital
        else:
            return capital - position * close_price
    
    def _calculate_metrics(self, returns: pd.Series, trades: List) -> Dict:
        """计算绩效指标"""
        if len(returns) == 0:
            return {}
        
        total_return = (1 + returns).prod() - 1
        annual_return = (1 + total_return) ** (252 * 24 / len(returns)) - 1
        sharpe_ratio = returns.mean() / returns.std() * np.sqrt(252 * 24)
        
        # 最大回撤
        cumulative = (1 + returns).cumprod()
        running_max = cumulative.expanding().max()
        drawdown = (cumulative - running_max) / running_max
        max_drawdown = drawdown.min()
        
        # 胜率
        winning_trades = [t['pnl'] for t in trades if t.get('pnl', 0) > 0]
        win_rate = len(winning_trades) / len(trades) if trades else 0
        
        return {
            'total_return': f"{total_return:.2%}",
            'annual_return': f"{annual_return:.2%}",
            'sharpe_ratio': f"{sharpe_ratio:.2f}",
            'max_drawdown': f"{max_drawdown:.2%}",
            'win_rate': f"{win_rate:.2%}",
            'total_trades': len(trades),
            'profit_factor': abs(sum([t['pnl'] for t in trades if t.get('pnl', 0) > 0]) / 
                                 sum([t['pnl'] for t in trades if t.get('pnl', 0) < 0])) if trades else 0
        }

主程序入口

# main.py
import os
from dotenv import load_dotenv
from api.holysheep_client import HolySheepAIClient
from features.multi_factor_builder import MultiFactorBuilder
from models.xgboost_quant_model import QuantXGBoostModel
from backtest.backtest_engine import BacktestEngine

load_dotenv()

def main():
    # 初始化 HolySheep API 客户端
    client = HolySheepAIClient(api_key=os.getenv("HOLYSHEEP_API_KEY"))
    
    # 初始化模块
    factor_builder = MultiFactorBuilder(api_client=client)
    model = QuantXGBoostModel(look_forward=4, threshold=0.003)
    
    print("=" * 60)
    print("加密货币量化策略:机器学习多因子模型")
    print("=" * 60)
    
    # 1. 构建特征
    print("\n[1/4] 构建多因子特征矩阵...")
    df = factor_builder.build_features('BTC/USDT', timeframe='1h', lookback_periods=500)
    print(f"特征数量: {len(df.columns)},数据长度: {len(df)}")
    
    # 2. 训练模型
    print("\n[2/4] 训练 XGBoost 多因子模型...")
    train_results = model.train(df, test_ratio=0.2)
    print(f"测试集准确率: {train_results['test_accuracy']:.2%}")
    print("\nTop 10 重要因子:")
    for i, feat in enumerate(train_results['feature_importance'][:10], 1):
        print(f"  {i}. {feat['feature']}: {feat['importance']:.4f}")
    
    # 3. 生成交易信号
    print("\n[3/4] 生成交易信号...")
    signal = model.get_trading_signal(df, confidence_threshold=0.65)
    print(f"方向: {signal['direction']}")
    print(f"置信度: {signal['confidence']:.2%}")
    print(f"建议仓位: {signal['position_size']:.0%}")
    print(f"理由: {signal['reason']}")
    
    # 4. 使用 AI 进行二次确认
    print("\n[4/4] AI 信号二次确认...")
    try:
        indicators = {
            'RSI_14': float(df['RSI_14'].iloc[-1]),
            'MACD': float(df['MACD'].iloc[-1]),
            'ADX': float(df['ADX'].iloc[-1]) if 'ADX' in df.columns else 50,
            'BB_position': float(df['BB_position'].iloc[-1]) if 'BB_position' in df.columns else 0.5
        }
        
        ai_analysis = client.generate_market_analysis(
            symbol='BTC/USDT