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quantconnect--lean/Algorithm.CSharp/CoarseSelectionTimeRegressionAlgorithm.cs
T
2019-09-29 21:50:44 -03:00

124 lines
4.9 KiB
C#

/*
* QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
* Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Collections.Generic;
using System.Linq;
using QuantConnect.Data;
using QuantConnect.Data.UniverseSelection;
using QuantConnect.Interfaces;
namespace QuantConnect.Algorithm.CSharp
{
/// <summary>
/// Test algorithm that reproduces GH issues 3410 and 3409.
/// Coarse universe selection should start from the algorithm start date.
/// Data returned by history requests performed from the selection method should be up to date.
/// </summary>
public class CoarseSelectionTimeRegressionAlgorithm : QCAlgorithm, IRegressionAlgorithmDefinition
{
private Symbol _spy;
private decimal _historyCoarseSpyPrice;
/// <summary>
/// Initialise the data and resolution required, as well as the cash and start-end dates for your algorithm. All algorithms must initialized.
/// </summary>
public override void Initialize()
{
SetStartDate(2014, 03, 25);
SetEndDate(2014, 04, 01);
_spy = AddEquity("SPY", Resolution.Daily).Symbol;
UniverseSettings.Resolution = Resolution.Daily;
AddUniverse(CoarseSelectionFunction);
}
public IEnumerable<Symbol> CoarseSelectionFunction(IEnumerable<CoarseFundamental> coarse)
{
var sortedByDollarVolume = coarse.OrderByDescending(x => x.DollarVolume);
var top = sortedByDollarVolume
.Where(fundamental => fundamental.Symbol != _spy) // ignore spy
.Take(1);
_historyCoarseSpyPrice = History(_spy, 1).First().Close;
return top.Select(x => x.Symbol);
}
/// <summary>
/// OnData event is the primary entry point for your algorithm. Each new data point will be pumped in here.
/// </summary>
/// <param name="data">Slice object keyed by symbol containing the stock data</param>
public override void OnData(Slice data)
{
if (data.Count != 2)
{
throw new Exception($"Unexpected data count: {data.Count}");
}
if (ActiveSecurities.Count != 2)
{
throw new Exception($"Unexpected ActiveSecurities count: {ActiveSecurities.Count}");
}
// the price obtained by the previous coarse selection should be the same as the current price
if (_historyCoarseSpyPrice != 0 && _historyCoarseSpyPrice != Securities[_spy].Price)
{
throw new Exception($"Unexpected SPY price: {_historyCoarseSpyPrice}");
}
_historyCoarseSpyPrice = 0;
if (!Portfolio.Invested)
{
SetHoldings(_spy, 1);
Debug("Purchased Stock");
}
}
/// <summary>
/// This is used by the regression test system to indicate if the open source Lean repository has the required data to run this algorithm.
/// </summary>
public bool CanRunLocally { get; } = true;
/// <summary>
/// This is used by the regression test system to indicate which languages this algorithm is written in.
/// </summary>
public Language[] Languages { get; } = { Language.CSharp };
/// <summary>
/// This is used by the regression test system to indicate what the expected statistics are from running the algorithm
/// </summary>
public Dictionary<string, string> ExpectedStatistics => new Dictionary<string, string>
{
{"Total Trades", "1"},
{"Average Win", "0%"},
{"Average Loss", "0%"},
{"Compounding Annual Return", "57.953%"},
{"Drawdown", "0.900%"},
{"Expectancy", "0"},
{"Net Profit", "1.007%"},
{"Sharpe Ratio", "4.212"},
{"Loss Rate", "0%"},
{"Win Rate", "0%"},
{"Profit-Loss Ratio", "0"},
{"Alpha", "-0.143"},
{"Beta", "0.921"},
{"Annual Standard Deviation", "0.086"},
{"Annual Variance", "0.007"},
{"Information Ratio", "-5.985"},
{"Tracking Error", "0.031"},
{"Treynor Ratio", "0.395"},
{"Total Fees", "$2.91"}
};
}
}