Files
quantconnect--lean/Algorithm.Framework/Selection/CoarseFundamentalUniverseSelectionModel.cs
Martin Molinero cfa08a11fb Address reviews
- Removing `using QCAlgorithmFramework = QuantConnect.Algorithm.QCAlgorithm`
- Removing `QCAlgorithmFrameworkBridge`
- Removing `IsFrameworkAlgorithm`
- Making `EmitInsightBasedOnFill` private. Adding new
`IOrderEventProvider` exposing an `event` to which `QCAlgorithm` will
subscribe.
- `AccountType.Cash` algorithms will be allowed to manually trade and
emight insights manually or with alpha model.
2019-04-03 21:55:44 -03:00

72 lines
3.5 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 Python.Runtime;
using QuantConnect.Data.UniverseSelection;
using QuantConnect.Securities;
namespace QuantConnect.Algorithm.Framework.Selection
{
/// <summary>
/// Portfolio selection model that uses coarse selectors. For US equities only.
/// </summary>
public class CoarseFundamentalUniverseSelectionModel : FundamentalUniverseSelectionModel
{
private readonly Func<IEnumerable<CoarseFundamental>, IEnumerable<Symbol>> _coarseSelector;
/// <summary>
/// Initializes a new instance of the <see cref="CoarseFundamentalUniverseSelectionModel"/> class
/// </summary>
/// <param name="coarseSelector">Selects symbols from the provided coarse data set</param>
/// <param name="universeSettings">Universe settings define attributes of created subscriptions, such as their resolution and the minimum time in universe before they can be removed</param>
/// <param name="securityInitializer">Performs extra initialization (such as setting models) after we create a new security object</param>
public CoarseFundamentalUniverseSelectionModel(
Func<IEnumerable<CoarseFundamental>, IEnumerable<Symbol>> coarseSelector,
UniverseSettings universeSettings = null,
ISecurityInitializer securityInitializer = null
)
: base(false, universeSettings, securityInitializer)
{
_coarseSelector = coarseSelector;
}
/// <summary>
/// Initializes a new instance of the <see cref="CoarseFundamentalUniverseSelectionModel"/> class
/// </summary>
/// <param name="coarseSelector">Selects symbols from the provided coarse data set</param>
/// <param name="universeSettings">Universe settings define attributes of created subscriptions, such as their resolution and the minimum time in universe before they can be removed</param>
/// <param name="securityInitializer">Performs extra initialization (such as setting models) after we create a new security object</param>
public CoarseFundamentalUniverseSelectionModel(
PyObject coarseSelector,
UniverseSettings universeSettings = null,
ISecurityInitializer securityInitializer = null
)
: base(false, universeSettings, securityInitializer)
{
Func<IEnumerable<CoarseFundamental>, Symbol[]> func;
if (coarseSelector.TryConvertToDelegate(out func))
{
_coarseSelector = func;
}
}
/// <inheritdoc />
public override IEnumerable<Symbol> SelectCoarse(QCAlgorithm algorithm, IEnumerable<CoarseFundamental> coarse)
{
return _coarseSelector(coarse);
}
}
}