Files
quantconnect--lean/Algorithm.CSharp/ConvertToFrameworkAlgorithm.cs
T
Michael Handschuh 4fd16f6daf Fix resolution of insight close times, allow user defined close times
Fixes a bug where we were using the security's data resolution to compute
the insight's close time. This led a case such as insight.Period == 20days
to step 20days worth of tradable minutes (assuming minute data resolution),
yielding a close time that was very far in the future.

We also add different means of specifying an insight's period/close time:
1. Specify insight period as a TimeSpan and we compute close time
2. Specify insight period and a resolution and bar count and we compute close time
3. Specify insight close time local directly and we compute the insight period

The key here is maintaining consistency between the three different approaches
which is heavily validated with the corresponding unit tests.

Edits also made to trust the insight's close time as the analysis end time in
the case where the analysis period == insight period (extra analysis period = 0).
Given the current setup (extra analysis period == 0), this guarantees that close
and analysis end times are equivalent.

Regression statistics were updated and expectedly we get many more insights that
have completed analysis, and as such, average scores have also changed.
2018-08-07 11:21:11 -04:00

155 lines
6.8 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 QuantConnect.Algorithm.Framework;
using QuantConnect.Algorithm.Framework.Alphas;
using QuantConnect.Data.Market;
using QuantConnect.Indicators;
using QuantConnect.Interfaces;
namespace QuantConnect.Algorithm.CSharp
{
/// <summary>
/// Demonstration algorithm showing how to easily convert an old algorithm into the framework.
///
/// 1. Make class derive from QCAlgorithmFrameworkBridge instead of QCAlgorithm.
/// 2. When making orders, also create insights for the correct direction (up/down), can also set insight prediction period/magnitude/direction
/// 3. Profit :)
/// </summary>
/// <meta name="tag" content="indicators" />
/// <meta name="tag" content="indicator classes" />
/// <meta name="tag" content="plotting indicators" />
public class ConvertToFrameworkAlgorithm : QCAlgorithmFrameworkBridge, IRegressionAlgorithmDefinition // 1. Derive from QCAlgorithmFrameworkBridge
{
private MovingAverageConvergenceDivergence _macd;
private readonly string _symbol = "SPY";
public readonly int FastEmaPeriod = 12;
public readonly int SlowEmaPeriod = 26;
/// <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(2004, 01, 01);
SetEndDate(2015, 01, 01);
AddSecurity(SecurityType.Equity, _symbol, Resolution.Daily);
// define our daily macd(12,26) with a 9 day signal
_macd = MACD(_symbol, FastEmaPeriod, SlowEmaPeriod, 9, MovingAverageType.Exponential, Resolution.Daily);
}
/// <summary>
/// OnData event is the primary entry point for your algorithm. Each new data point will be pumped in here.
/// </summary>
/// <param name="data">TradeBars IDictionary object with your stock data</param>
public void OnData(TradeBars data)
{
// wait for our indicator to be ready
if (!_macd.IsReady) return;
var holding = Portfolio[_symbol];
var signalDeltaPercent = (_macd - _macd.Signal) / _macd.Fast;
var tolerance = 0.0025m;
// if our macd is greater than our signal, then let's go long
if (holding.Quantity <= 0 && signalDeltaPercent > tolerance)
{
// 2. Call EmitInsights with insights created in correct direction, here we're going long
// The EmitInsights method can accept multiple insights separated by commas
EmitInsights(
// Creates an insight for our symbol, predicting that it will move up within the fast ema period number of days
Insight.Price(_symbol, TimeSpan.FromDays(FastEmaPeriod), InsightDirection.Up)
);
// longterm says buy as well
SetHoldings(_symbol, 1.0);
}
// if our macd is less than our signal, then let's go short
else if (holding.Quantity >= 0 && signalDeltaPercent < -tolerance)
{
// 2. Call EmitInsights with insights created in correct direction, here we're going short
// The EmitInsights method can accept multiple insights separated by commas
EmitInsights(
// Creates an insight for our symbol, predicting that it will move down within the fast ema period number of days
Insight.Price(_symbol, TimeSpan.FromDays(FastEmaPeriod), InsightDirection.Down)
);
// shortterm says sell as well
SetHoldings(_symbol, -1.0);
}
// plot both lines
Plot("MACD", _macd, _macd.Signal);
Plot(_symbol, "Open", data[_symbol].Open);
Plot(_symbol, _macd.Fast, _macd.Slow);
}
/// <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, Language.Python };
/// <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", "85"},
{"Average Win", "4.85%"},
{"Average Loss", "-4.21%"},
{"Compounding Annual Return", "-3.105%"},
{"Drawdown", "52.900%"},
{"Expectancy", "-0.053"},
{"Net Profit", "-29.335%"},
{"Sharpe Ratio", "-0.084"},
{"Loss Rate", "56%"},
{"Win Rate", "44%"},
{"Profit-Loss Ratio", "1.15"},
{"Alpha", "0.046"},
{"Beta", "-3.04"},
{"Annual Standard Deviation", "0.181"},
{"Annual Variance", "0.033"},
{"Information Ratio", "-0.194"},
{"Tracking Error", "0.181"},
{"Treynor Ratio", "0.005"},
{"Total Fees", "$755.20"},
{"Total Insights Generated", "85"},
{"Total Insights Closed", "85"},
{"Total Insights Analysis Completed", "85"},
{"Long Insight Count", "42"},
{"Short Insight Count", "43"},
{"Long/Short Ratio", "97.67%"},
{"Estimated Monthly Alpha Value", "$-607698.1"},
{"Total Accumulated Estimated Alpha Value", "$-81395260"},
{"Mean Population Estimated Insight Value", "$-957591.3"},
{"Mean Population Direction", "50.5882%"},
{"Mean Population Magnitude", "0%"},
{"Rolling Averaged Population Direction", "46.5677%"},
{"Rolling Averaged Population Magnitude", "0%"}
};
}
}