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# 本代码由可视化策略环境自动生成 2017年11月28日 09:18
# 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。


m1 = M.instruments.v2(
    start_date='2013-01-01',
    end_date='2017-11-27',
    market='CN_STOCK_A',
    instrument_list='',
    max_count=0
)

m2 = M.input_features.v1(
    features='rank_pb_lf_0'
)

m3 = M.general_feature_extractor.v6(
    instruments=m1.data,
    features=m2.data,
    start_date='',
    end_date='',
    before_start_days=0
)

m4 = M.filter.v3(
    input_data=m3.data,
    expr='rank_pb_lf_0<=0.1',
    output_left_data=False
)

# 回测引擎：每日数据处理函数，每天执行一次
def m5_handle_data_bigquant_run(context, data):
	
	if context.trading_day_index % 22 !=0:
		return
	# 按日期过滤得到当日的数据
	cur_data = context.data[context.data.date==data.current_dt.strftime('%Y-%m-%d')]
	buy_stock = list(cur_data['instrument']) # 选出市净率最小的10%股票列表
	
	# 持仓股票列表，为字符串
	equities = {e.symbol :p for e,p in context.portfolio.positions.items() if p.amount>0}
	for instrument in equities:
		if data.can_trade(context.symbol(instrument)):
			context.order_target_percent(context.symbol(instrument),0)
	# 买入股票
	for i  in buy_stock:
		if data.can_trade(context.symbol(i)):
			context.order_target_percent(context.symbol(i), 1/len(buy_stock)) # 等权重买入
	
			
	 
# 回测引擎：准备数据，只执行一次
def m5_prepare_bigquant_run(context):
    pass

# 回测引擎：初始化函数，只执行一次
def m5_initialize_bigquant_run(context):
    # 加载预测数据
    context.data = 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 = 30
     

# 回测引擎：每个单位时间开始前调用一次，即每日开盘前调用一次。
def m5_before_trading_start_bigquant_run(context, data):
    pass

m5 = M.trade.v3(
    instruments=m1.data,
    options_data=m4.data,
    start_date='',
    end_date='',
    handle_data=m5_handle_data_bigquant_run,
    prepare=m5_prepare_bigquant_run,
    initialize=m5_initialize_bigquant_run,
    before_trading_start=m5_before_trading_start_bigquant_run,
    volume_limit=0,
    order_price_field_buy='open',
    order_price_field_sell='open',
    capital_base=1000000,
    benchmark='000300.SHA',
    auto_cancel_non_tradable_orders=True,
    data_frequency='daily',
    plot_charts=True,
    backtest_only=False
)

[2017-11-28 09:13:00.085405] INFO: bigquant: instruments.v2 开始运行..
[2017-11-28 09:13:00.088732] INFO: bigquant: 命中缓存
[2017-11-28 09:13:00.090226] INFO: bigquant: instruments.v2 运行完成[0.00485s].
[2017-11-28 09:13:00.094569] INFO: bigquant: input_features.v1 开始运行..
[2017-11-28 09:13:00.097016] INFO: bigquant: 命中缓存
[2017-11-28 09:13:00.098065] INFO: bigquant: input_features.v1 运行完成[0.003494s].
[2017-11-28 09:13:00.104386] INFO: bigquant: general_feature_extractor.v6 开始运行..
[2017-11-28 09:13:00.106497] INFO: bigquant: 命中缓存
[2017-11-28 09:13:00.107487] INFO: bigquant: general_feature_extractor.v6 运行完成[0.003161s].
[2017-11-28 09:13:00.113516] INFO: bigquant: filter.v3 开始运行..
[2017-11-28 09:13:00.115629] INFO: bigquant: 命中缓存
[2017-11-28 09:13:00.116673] INFO: bigquant: filter.v3 运行完成[0.003135s].
[2017-11-28 09:13:00.138185] INFO: bigquant: backtest.v7 开始运行..
[2017-11-28 09:14:58.308032] INFO: Performance: Simulated 1191 trading days out of 1191.
[2017-11-28 09:14:58.309222] INFO: Performance: first open: 2013-01-04 14:30:00+00:00
[2017-11-28 09:14:58.310044] INFO: Performance: last close: 2017-11-27 20:00:00+00:00

[2017-11-28 09:15:07.277174] INFO: bigquant: backtest.v7 运行完成[127.138946s].