Bollinger Bands can now accept different smoothing (Moving Averages)

[o-nazaruk]

Checklist for new indicators

• Indicator is documented and implemented by extending BigIndicatorSeries
• A "faster" version of this indicator is implemented by extending NumberIndicatorSeries
• Tests for getResult are present
• Tests for highest and lowest result caching are present (if not already existent for base class)
• Tests for error handling are present (if not already existent for base class)
• Indicators (standard & faster version) are exposed in src/index.ts
• Indicators (standard & faster version) are added to startBenchmark.ts
• Indicator is listed in README.md

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 31.50685% with 50 lines in your changes are missing coverage. Please review.

Project coverage is 97.87%. Comparing base (ebb6c01) to head (7c995a5).
Report is 38 commits behind head on main.

Files	Patch %	Lines
src/WSMA/WSMA.ts	14.28%	24 Missing ⚠️
src/EMA/EMA.ts	14.81%	23 Missing ⚠️
src/SMA/SMA.ts	57.14%	3 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff             @@
##              main     #662      +/-   ##
===========================================
- Coverage   100.00%   97.87%   -2.13%     
===========================================
  Files           36       36              
  Lines         2290     2357      +67     
  Branches       248      249       +1     
===========================================
+ Hits          2290     2307      +17     
- Misses           0       50      +50     

Flag	Coverage Δ
unittests	97.87% <31.50%> (-2.13%)	⬇️

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[bennycode]

Hi @o-nazaruk, do you need any help resolving the code conflicts or writing tests for it?

[bennycode]

Hey @o-nazaruk, are you still interested in getting this merged? I think it is a very good change that you proposed here. :)

[o-nazaruk]

Hello @bennycode !

I haven't had a chance to have the tests developed for now. It's been quite busy for me haha.
Up to you in terms of if you want the tests done sooner. I don't know when I will have free time - but once I am free I will certainly improve coverage

[bennycode]

@o-nazaruk can you create a new PR that add the smoothing parameter to the constructur of Bollinger Bands? I can take over from there.

[bennycode]

Hi @o-nazaruk, I am trying to fix your PR to match the latest "main" branch. One thing that I noticed is that you turned getResultFromBatch into an instance method instead of keeping it static. Let's try to run with the static method as it is not necessary to create an instance of an indicator with a specific interval first. We just have to figure out how we can make a static method part of the MovingAverage abstract class.