- Adding `LazyToUpper()` implementation, that will avoid the call to
`ToUpper` if the string is already upper.
- Reduce the timezone conversions at `Time.EachTradeableDayInTimeZone`
- `TotalPortfolioValue` will iterate over all securities once
- Adding new `SecurityIdentifier` cache, significant impact for
algorithms using coarse/fine data
- `FactorFile` will keep an ordered reversed list with the dates.
Calling `Reverse()` on the `SortedList` is expensive.
- `MapFiles` will keep first and last date, so we don't need to call
`First()` and `Last()` multiple times.
- `Liquidate` will go through all the algorithms securities only if
necessary
- `TradeBar` parsing will not call `new T` for pure `TradeBar` which is
expensive
- Removing `Lazy` hash code and security type for the
`SecurityIdentifier`, replacing for direct initialization. Accessing the
`Lazy` value adds an overhead.
- Replacing `Enum` to string for hardcoded switch statement. `Enum.ToString` is expensive.
- `DataManager` will be lazy for counting the subscriptions for
determining if its above the limit
- Adding `AlgorithmSecurityValuesProvider.GetAllValues()`, removes the
need to fetch all the security keys twice.
- During universe selection, will not try to re add already added symbol
Created random-seed argument for rdg in order to let the user get deterministic output
Update documentation in 'FactorFileRow.cs' to accurately reflect factor
file structure
Update CSV generation for FactorFile so that it uses FactorFileRow's CSV
generator
Add FinancialCalendar to make it easier to implement logic regarding
financial quarters
Add mapping events to RandomDataGenerator
Update MapFileRow ToCsv method to correctly emit the ticker as lowercase
Fix bug in FactorFile where we would get the same initial data point twice
when we converted it to CSV
Create new method to convert a MapFile to CSV
Create new method to write MapFile to disk as CSV
Add unit test to test for successful CSV generation in MapFile
Add new files to project
Add FinancialCalendar unit tests
Create new class to handle generation of dividends, splits, and maps
Empty factor files (whether a single 2050 line or no lines), by definition don't
have any splits or dividends.
FactorFile.MostRecentFactorChange yields the maximum date that isn't the 2050 date
Adds reference price to dividend/split
Adds GetSplitsAndDividends to FactorFile
Adds Apply methods to FactorFile/FactorFileRow
Updates factor files to include reference prices
Some factor files contain duplicate rows causing a duplicate key exception when loaded. We now ignore these rows, allowing factors to be loaded and applied correctly.
Before this PR, backtesting some symbols fails with an error when parsing the factor file.
Some factor files have INF split values, indicating that the stock has so many splits that prices can't be calculated with correct numerical precision.
To allow backtesting these symbols, we need to move the starting date forward when reading the data.
Known symbols: GBSN, JUNI, NEWL
Martin Molinero