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# 本代码由可视化策略环境自动生成 2022年4月2日 11:12
# 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
    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, stock_count)])
    # 设置每只股票占用的最大资金比例
    context.max_cash_per_instrument = 1
    context.options['hold_days'] = 1

# 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')]

    # 1. 资金分配
    # 平均持仓时间是hold_days，每日都将买入股票，每日预期使用 1/hold_days 的资金
    # 实际操作中，会存在一定的买入误差，所以在前hold_days天，等量使用资金；之后，尽量使用剩余资金（这里设置最多用等量的1.5倍）
    is_staging = context.trading_day_index < context.options['hold_days'] # 是否在建仓期间（前 hold_days 天）
    cash_avg = context.portfolio.portfolio_value / context.options['hold_days']
    cash_for_buy = min(context.portfolio.cash, (1 if is_staging else 1.5) * cash_avg)
    cash_for_sell = cash_avg - (context.portfolio.cash - cash_for_buy)
    positions = {e.symbol: p.amount * p.last_sale_price
                 for e, p in context.portfolio.positions.items()}

    # 2. 生成卖出订单：hold_days天之后才开始卖出；对持仓的股票，按机器学习算法预测的排序末位淘汰
    if not is_staging and cash_for_sell > 0:
        equities = {e.symbol: e for e, p in context.portfolio.positions.items()}
        instruments = list(reversed(list(ranker_prediction.instrument[ranker_prediction.instrument.apply(
                lambda x: x in equities)])))

        for instrument in instruments:
            context.order_target(context.symbol(instrument), 0)
            cash_for_sell -= positions[instrument]
            if cash_for_sell <= 0:
                break

    # 3. 生成买入订单：按机器学习算法预测的排序，买入前面的stock_count只股票
    buy_cash_weights = context.stock_weights
    buy_instruments = list(ranker_prediction.instrument[:len(buy_cash_weights)])
    max_cash_per_instrument = context.portfolio.portfolio_value * context.max_cash_per_instrument
    for i, instrument in enumerate(buy_instruments):
        cash = cash_for_buy * buy_cash_weights[i]
        if cash > max_cash_per_instrument - positions.get(instrument, 0):
            # 确保股票持仓量不会超过每次股票最大的占用资金量
            cash = max_cash_per_instrument - positions.get(instrument, 0)
        if cash > 0:
            context.order_value(context.symbol(instrument), cash)

# 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='2015-01-01',
    end_date='2020-12-31',
    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/develop/datasource/deprecated/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/develop/bigexpr/usage.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.HIX',
    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
#alpha1='+'.join(['(close_{}<mean(close_0,5))&(close_0>mean(close_0,5))'.format(k) for k in range(1,2,3,4,5,6)])
#mm = where(((close_0 > mean(close_0,5)) & (shift(close_0,1) < mean(close_1,5)) & (shift(close_0,2) < mean(close_2,5)) & (shift(close_0,3) < mean(close_3,5)) & (shift(close_0,4) < mean(close_4,5)) & (shift(close_0,5) < mean(close_5,5)) & (shift(close_0,6) < mean(close_6,5))),(((mean(close_6,5)/mean(close_5,5))+(mean(close_5,5)/mean(close_4,5))+(mean(close_4,5)/mean(close_3,5))+(mean(close_3,5)/mean(close_2,5))+(mean(close_2,5)/mean(close_1,5)))/5),0)
ma = where(((close_0 > mean(close_0,5)) | (close_0 > mean(close_0,13))),(open_0/close_0),0)"""
)

m15 = M.general_feature_extractor.v7(
    instruments=m1.data,
    features=m3.data,
    start_date='',
    end_date='',
    before_start_days=90
)

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
)

m13 = M.dropnan.v1(
    input_data=m7.data
)

m9 = M.instruments.v2(
    start_date=T.live_run_param('trading_date', '2021-03-01'),
    end_date=T.live_run_param('trading_date', '2022-03-22'),
    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=90
)

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
)

m14 = M.dropnan.v1(
    input_data=m18.data
)

m4 = M.lightgbm.v2(
    training_ds=m13.data,
    features=m3.data,
    predict_ds=m14.data,
    num_boost_round=30,
    objective='排序(ndcg)',
    num_class=0,
    num_leaves=30,
    learning_rate=0.1,
    min_data_in_leaf=200,
    max_bin=255,
    key_cols='date,instrument',
    group_col='date',
    random_seed=101,
    other_train_parameters={}
)

m19 = M.trade.v4(
    instruments=m9.data,
    options_data=m4.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='真实价格',
    product_type='股票',
    plot_charts=True,
    backtest_only=False,
    benchmark='000300.HIX'
)

[2022-04-02 11:17:32.354732] INFO: moduleinvoker: instruments.v2 开始运行..

[2022-04-02 11:17:32.364674] INFO: moduleinvoker: 命中缓存

[2022-04-02 11:17:32.366542] INFO: moduleinvoker: instruments.v2 运行完成[0.012001s].

[2022-04-02 11:17:32.406165] INFO: moduleinvoker: advanced_auto_labeler.v2 开始运行..

[2022-04-02 11:17:32.415174] INFO: moduleinvoker: 命中缓存

[2022-04-02 11:17:32.416993] INFO: moduleinvoker: advanced_auto_labeler.v2 运行完成[0.010818s].

[2022-04-02 11:17:32.422230] INFO: moduleinvoker: input_features.v1 开始运行..

[2022-04-02 11:17:32.463484] INFO: moduleinvoker: input_features.v1 运行完成[0.041257s].

[2022-04-02 11:17:32.480283] INFO: moduleinvoker: general_feature_extractor.v7 开始运行..

[2022-04-02 11:17:32.489741] INFO: moduleinvoker: 命中缓存

[2022-04-02 11:17:32.491574] INFO: moduleinvoker: general_feature_extractor.v7 运行完成[0.01131s].

[2022-04-02 11:17:32.503073] INFO: moduleinvoker: derived_feature_extractor.v3 开始运行..

[2022-04-02 11:18:06.656267] INFO: derived_feature_extractor: 提取完成 ma = where(((close_0 > mean(close_0,5)) | (close_0 > mean(close_0,13))),(open_0/close_0),0), 26.075s

[2022-04-02 11:18:07.130199] INFO: derived_feature_extractor: /y_2014, 141569

[2022-04-02 11:18:07.959409] INFO: derived_feature_extractor: /y_2015, 569698

[2022-04-02 11:18:09.025547] INFO: derived_feature_extractor: /y_2016, 641546

[2022-04-02 11:18:10.184071] INFO: derived_feature_extractor: /y_2017, 743233

[2022-04-02 11:18:11.488193] INFO: derived_feature_extractor: /y_2018, 816987

[2022-04-02 11:18:12.807932] INFO: derived_feature_extractor: /y_2019, 884867

[2022-04-02 11:18:14.369311] INFO: derived_feature_extractor: /y_2020, 945961

[2022-04-02 11:18:14.768087] INFO: moduleinvoker: derived_feature_extractor.v3 运行完成[42.265004s].

[2022-04-02 11:18:14.778603] INFO: moduleinvoker: join.v3 开始运行..

[2022-04-02 11:18:34.450904] INFO: join: /y_2014, 行数=0/141569, 耗时=8.758704s

[2022-04-02 11:18:36.911416] INFO: join: /y_2015, 行数=560442/569698, 耗时=2.4583s