克隆策略

    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    In [1]:
    # 本代码由可视化策略环境自动生成 2021年5月13日16:57
    # 本代码单元只能在可视化模式下编辑。您也可以拷贝代码,粘贴到新建的代码单元或者策略,然后修改。
    
    
    # 回测引擎:初始化函数,只执行一次
    def m19_initialize_bigquant_run(context):
        # 加载预测数据
        context.ranker_prediction = context.options['data'].read_df()
    
        # 系统已经设置了默认的交易手续费和滑点,要修改手续费可使用如下函数
        context.set_commission(PerOrder(buy_cost=0.0003, sell_cost=0.0013, min_cost=5))
        # 预测数据,通过options传入进来,使用 read_df 函数,加载到内存 (DataFrame)
        # 设置买入的股票数量,这里买入预测股票列表排名靠前的5只
        context.stock_count = 1
        # 每只的股票的权重,如下的权重分配会使得靠前的股票分配多一点的资金,[0.339160, 0.213986, 0.169580, ..]
        #context.stock_weights = T.norm([1 / math.log(i + 2) for i in range(0, context.stock_count)])
        context.stock_weights = [0.5/context.stock_count for k in range(context.stock_count)]  #半仓买入,每只股票等资金分配
        # 设置每只股票占用的最大资金比例
        context.max_cash_per_instrument = 0.5
        #context.options['hold_days'] = 5
    
    
    # 回测引擎:每日数据处理函数,每天执行一次
    def m19_handle_data_bigquant_run(context, data):
        # 按日期过滤得到今日的预测数据
        ranker_prediction = context.ranker_prediction[
            context.ranker_prediction.date == data.current_dt.strftime('%Y-%m-%d')]
        
        # 当日可用资金
        cash_for_buy = context.portfolio.cash
        
        # 获取当日买入列表,每天选取context.stock_count只
        buy_list = list(ranker_prediction.instrument[:context.stock_count])
        
        # 获取当前持仓
        stock_hold_now = {e.symbol: p.amount * p.last_sale_price
                          for e, p in context.perf_tracker.position_tracker.positions.items()} 
    
        # 需要卖出的股票:已有持仓中不在买入列表的股票
        stock_to_sell = [ i for i in stock_hold_now if i not in buy_list ]
        stock_to_buy =  [ i for i in buy_list if i not in stock_hold_now ]
        
        # 卖出列表进行卖出操作
        if len(stock_to_sell)>0:
            for instrument in stock_to_sell:
                sid = context.symbol(instrument) # 将标的转化为equity格式
                cur_position = context.portfolio.positions[sid].amount # 持仓
                if cur_position > 0 and data.can_trade(sid):
                    context.order_target_percent(sid, 0) # 全部卖出
                    # 如果是早盘买早盘卖,卖出的资金可以用于买股票,此时应将下面的注释打开,卖出股票时更新可用现金;
                    # 如果是早盘买尾盘卖,则卖出时不需更新可用现金,因为尾盘卖出股票所得现金无法使用
                    #cash_for_buy += stock_hold_now[instrument]
        
        # 买入列表执行买操作
        if len(stock_to_buy)>0:
            for instrument,weight in zip(stock_to_buy,context.stock_weights):
                sid = context.symbol(instrument) # 将标的转化为equity格式
                if data.can_trade(sid):
                    context.order_target_value(sid, min(cash_for_buy,context.portfolio.portfolio_value*0.5)) # 买入
    # 回测引擎:准备数据,只执行一次
    def m19_prepare_bigquant_run(context):
        pass
    
    
    m1 = M.instruments.v2(
        start_date='2011-01-01',
        end_date='2016-12-30',
        market='CN_STOCK_A',
        instrument_list='',
        max_count=0
    )
    
    m2 = M.advanced_auto_labeler.v2(
        instruments=m1.data,
        label_expr="""# #号开始的表示注释
    # 0. 每行一个,顺序执行,从第二个开始,可以使用label字段
    # 1. 可用数据字段见 https://bigquant.com/docs/data_history_data.html
    #   添加benchmark_前缀,可使用对应的benchmark数据
    # 2. 可用操作符和函数见 `表达式引擎 <https://bigquant.com/docs/big_expr.html>`_
    
    # 计算收益:5日收盘价(作为卖出价格)除以明日开盘价(作为买入价格)
    shift(close, -2) / shift(open, -1)
    
    # 极值处理:用1%和99%分位的值做clip
    clip(label, all_quantile(label, 0.01), all_quantile(label, 0.99))
    
    # 将分数映射到分类,这里使用20个分类
    all_wbins(label, 20)
    
    # 过滤掉一字涨停的情况 (设置label为NaN,在后续处理和训练中会忽略NaN的label)
    where(shift(high, -1) == shift(low, -1), NaN, label)
    """,
        start_date='',
        end_date='',
        benchmark='000300.SHA',
        drop_na_label=True,
        cast_label_int=True
    )
    
    m3 = M.input_features.v1(
        features="""# #号开始的表示注释
    # 多个特征,每行一个,可以包含基础特征和衍生特征
    close_0/mean(close_0,5)
    close_0/mean(close_0,10)
    close_0/mean(close_0,20)
    close_0/open_0
    open_0/mean(close_0,5)
    open_0/mean(close_0,10)
    open_0/mean(close_0,20)"""
    )
    
    m15 = M.general_feature_extractor.v7(
        instruments=m1.data,
        features=m3.data,
        start_date='',
        end_date='',
        before_start_days=0
    )
    
    m16 = M.derived_feature_extractor.v3(
        input_data=m15.data,
        features=m3.data,
        date_col='date',
        instrument_col='instrument',
        drop_na=False,
        remove_extra_columns=False
    )
    
    m7 = M.join.v3(
        data1=m2.data,
        data2=m16.data,
        on='date,instrument',
        how='inner',
        sort=False
    )
    
    m5 = M.dropnan.v2(
        input_data=m7.data
    )
    
    m4 = M.stock_ranker_train.v6(
        training_ds=m5.data,
        features=m3.data,
        learning_algorithm='排序',
        number_of_leaves=30,
        minimum_docs_per_leaf=1000,
        number_of_trees=20,
        learning_rate=0.1,
        max_bins=1023,
        feature_fraction=1,
        data_row_fraction=1,
        ndcg_discount_base=1,
        m_lazy_run=False
    )
    
    m9 = M.instruments.v2(
        start_date=T.live_run_param('trading_date', '2017-01-01'),
        end_date=T.live_run_param('trading_date', '2020-03-06'),
        market='CN_STOCK_A',
        instrument_list='',
        max_count=0
    )
    
    m17 = M.general_feature_extractor.v7(
        instruments=m9.data,
        features=m3.data,
        start_date='',
        end_date='',
        before_start_days=0
    )
    
    m18 = M.derived_feature_extractor.v3(
        input_data=m17.data,
        features=m3.data,
        date_col='date',
        instrument_col='instrument',
        drop_na=False,
        remove_extra_columns=False
    )
    
    m6 = M.dropnan.v2(
        input_data=m18.data
    )
    
    m8 = M.stock_ranker_predict.v5(
        model=m4.model,
        data=m6.data,
        m_lazy_run=False
    )
    
    m19 = M.trade.v4(
        instruments=m9.data,
        options_data=m8.predictions,
        start_date='',
        end_date='',
        initialize=m19_initialize_bigquant_run,
        handle_data=m19_handle_data_bigquant_run,
        prepare=m19_prepare_bigquant_run,
        volume_limit=0.025,
        order_price_field_buy='open',
        order_price_field_sell='close',
        capital_base=1000000,
        auto_cancel_non_tradable_orders=True,
        data_frequency='daily',
        price_type='后复权',
        product_type='股票',
        plot_charts=True,
        backtest_only=False,
        benchmark=''
    )
    
    设置评估测试数据集,查看训练曲线
    [视频教程]StockRanker训练曲线
    bigcharts-data-start/{"__type":"tabs","__id":"bigchart-34ecf38b9f3e4a9fa77990380cbbfa81"}/bigcharts-data-end
    • 收益率150.09%
    • 年化收益率34.88%
    • 基准收益率25.03%
    • 阿尔法0.3
    • 贝塔0.61
    • 夏普比率0.9
    • 胜率0.51
    • 盈亏比1.26
    • 收益波动率37.87%
    • 信息比率0.05
    • 最大回撤23.11%
    bigcharts-data-start/{"__type":"tabs","__id":"bigchart-9f2794dd9c9846b792faff3f2f7e13a6"}/bigcharts-data-end
    In [2]:
    m4.feature_gains.read()
    
    Out[2]:
    feature gain
    0 close_0/mean(close_0,20) 501.373879
    1 close_0/mean(close_0,5) 276.174358
    2 close_0/open_0 141.480593
    3 close_0/mean(close_0,10) 129.087628
    4 open_0/mean(close_0,20) 117.782951
    5 open_0/mean(close_0,5) 74.362422
    6 open_0/mean(close_0,10) 42.474288
    In [ ]: