Implement WaveTrendOscillator (bar indicator) per the linked issue. Adds
the indicator class, the WTO helper in QCAlgorithm.Indicators.cs, unit
tests inheriting CommonIndicatorTests<IBaseDataBar>, and the reference
CSV under Tests/TestData/.
The oscillator is computed from the typical price (HLC/3): an EMA
smooths it (ESA), a second EMA tracks its absolute deviation (D), the
normalized channel index (HLC3 - ESA) / (0.015 * D) is smoothed by a
third EMA to produce WT1, and an SMA of WT1 produces the signal line
WT2. Crossovers between WT1 and WT2 are commonly used as entry and exit
signals for momentum reversals.
Reference values were generated with TA-Lib (talib.EMA + talib.SMA)
following the script posted by @LouisSzeto in the issue thread.
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Previously, each SwissArmyKnife instance could only compute a single
tool. To use multiple tools, users had to create separate instances.
Now all five tools (Gauss, Butter, HighPass, TwoPoleHighPass, BandPass)
are computed simultaneously and exposed as public properties.
Resolves#3270
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* Implement indicator-based option price model
This model uses IV and Greeks indicators to implement Lean's own option pricing model
* Minor fixes
* Address peer review
* Minor tests fixes
* Make the indicator based price model the default for options
* Address peer review
* Cleanup and minor changes
* Support indicators configuration for new pricing model
* Some cleanup
* Add QL option price model example algorithm
* Return lean models from static helpers
* Minor tests fixes
* Minor test fixes
* Address peer review
* Cleanup
* Fix unit tests
* Move QL models to OptionPriceModels.QuantLib.*
* Add forward tree helper method
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* Implements Covariance as Lean Indicator
* Add COV helper method and fix AcceptsVolumeRenkoBarsAsInput test
* Fix AcceptsRenkoBarsAsInput test to use smaller period for faster execution
* Fix slow Renko tests by limiting data processed to 50 rows
* Add optional strict parameter to PivotPointsHighLow indicator for relaxed comparison
- Added bool strict parameter (default true) to PivotPointsHighLow constructors
- When strict=true: Uses strict inequalities (> and <) - existing behavior
- When strict=false: Uses relaxed inequalities (>= and <=) - allows equal values
- Updated comparison logic in FindNextLowPivotPoint and FindNextHighPivotPoint
- Added new PPHL overload in QCAlgorithm.Indicators.cs with strict parameter
- Added 5 comprehensive unit tests using TestCase attributes
- All tests pass (19/19 relevant tests)
- Backwards compatible: default behavior unchanged
Addresses #8881
* Fix PPHL method signature to resolve overload ambiguity and maintain API consistency
- Remove wrapper overload to eliminate compilation ambiguity
- Reorder parameters: strict parameter now before resolution
- Keep selector as last parameter (consistent with other indicator helpers)
- Add unit tests verifying no overload ambiguity and correct strict parameter behavior
Addresses PR review feedback on #9033
* Implement backward-compatible PPHL overloads to support strict parameter
Added a second overload to maintain backward compatibility while introducing
the strict parameter. This prevents breaking changes for existing code that
uses positional arguments with the PPHL helper method.
Changes:
- Added backward-compatible overload that accepts (symbol, lengthHigh, lengthLow,
lastStoredValues, resolution, selector) and delegates to the new implementation
with strict: true
- Kept the new overload with strict parameter as the primary implementation
- Added comprehensive test (QCAlgorithmHelperOverloadResolution) documenting all
9 valid call patterns to prevent future regressions
This approach ensures:
- Existing calls like PPHL(symbol, 3, 3, 100, Resolution.Minute) continue to work
- New calls like PPHL(symbol, 3, 3, strict: false) are supported
- No ambiguity in overload resolution
- All 23 PPHL tests pass successfully
* Clean up some test duplication
---------
Co-authored-by: Martin Molinero <martin.molinero1@gmail.com>
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* initial draft changes
* Saving draft changes for TD Sequential Implementation
* Fixed failing tests
* Refactoring changes
* Additional refactoring to TDSequential
* Added tests
* Incorporated review comments
* reverted changes to older file
* Updated for review comment
* Updated Buy and Sell Setup Perfect functions based on review comment to remove equality operator
* Added SupportPrice and ResistancePrice as read-only public properties to expose the internal _resistance and _support prices
* Changed return value of ComputeNextValue to TomDemarkSequentialPhase instead of the encoded value of Phase.StepCount as per review comment
* Updated initialization to include bullish and bearish flip checks
* Refactored and cleaned up based on review comments
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* Some fixes for new C# enums handling in Pythonnet
* Minor changes and cleanup
* Update Pythonnet version to 2.0.45
* Minor changes
* Minor fix
* Minor fix
* Minor change
* Minor change
* Minor unit test fix
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* Support sub-indicator discovery using IIndicator and exclude PandasIgnore attribute
* WIP: PandasInclude
* Add PandasInclude annotation
* Resolve review comments
* Add a list of ignored properties
* Clean up [PandasIgnore] in IndicatorBase
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* implements Klinger Volume Oscillator
* preserve newest data file
* improve class summary
* address PR comments, add signal line, use RollingWindow to persist data, refactor code to make easier to follow
* add helper method KVO in in QCAlgorithm.Indicators.cs, add Signal test, fix IsReady and WarmUpPeriod
* default signal period for KVO, refactor and improve ComputeNextValue, simplified code
* update comment
* update comment
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* Ignore some errors in python syntax check.
Fix some algorithms syntax as well.
* Revert some changes
* Minor change
* Minor change
* Minor syntax check fixes
* Ignore more mypy errors
* Minor changes
* Ignore more mypy messages
* Ignore more mypy messages
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* Make ExtendedDictionary extend IDictionary
* Revert "Make ExtendedDictionary extend IDictionary"
This reverts commit bbbe9c769be682767cb9e487b904480376b53596.
* Make ExtendedDictionary key a type parameter
* Make SecurityPositionGroupModel an ExtendedDictionary
* Add unit tests
* Minor change
* Add more unit tests and other minor changes
* Add Count and ContainsKey to BaseChain
* Update pythonnet version to 2.0.43
* Update some python regression algorithms
* Minor regression algorithms fix
* Make CashBook and ExtendedDictionary
* Minor changes
* Minor changes
* Update pythonnet version to 2.0.44
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* Initial solution
* Update unit test
* Explicit conversion if T is IndicatorDataPoint
* Solve review comments
* Add override tests for Beta and Alpha
* Refactor and update unit test suite
* Create unit test for OptionIndicators
* Resolve review comments
* Resolve new review comments
* Add a new default selector
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* Initial solution
* Add python support for CompositeIndicator
* Add unit tests and update CompositeIndicator
* Add new test case
* Update TryConvertToIndicator logic
* Solve review comments
* Resolve review comments
* Remove unnessary case
* Use GetIndicatorAsManagedObject instead of ConvertToIndicator
* Add regression tests
* Add DualSymbolIndicator unit tests
* Introduce MultiSymbolIndicator for indicators working on multiple symbols
Use the new class as base for DualSymbolIndicator and OptionIndicatorBase.
The OptionIndicatorBase can now detect when ready even if underlying and options market close is different when resolution is daily.
* Accept any BaseData for options indicators
* Improve indicator conversion from python on registration
Also minor fixes
* Cleanup and simplification
* Fix ImpliedVolatility IsReady flag
* Update regression algorithm history count
AutomaticIndicatorWarmupOptionIndicatorsMirrorContractsRegressionAlgorithm history count decreased because options indicators period is now 1 instead of 2
* Address peer review
* WIP: Refactor Correlation Indicator
* Simplified comparison logic and improved abstraction
* Refactor Correlation and Beta indicators
- Created a base class to handle indicators with dual-symbol
functionality.
- Refactored the Beta and Correlation indicators to inherit from the new
base class.
- Updated unit tests.
- Added a new regression test to validate the latest computed value.
* Addressed review comments
* Update regression test
* Add new unit test to CommonIndicatorTests
* Addressed new review comments
Derek Melchin