Add Seq.meanQuadratic and Seq.meanQuadraticBy

[axrwl]

Closes #233

Changes

• Add Seq.meanQuadratic
• Add Seq.meanQuadraticBy

Description This PR adds the Quadratic mean (also known as RMS). Here is the wikipedia page for the Quadratic mean.

• [x] The project builds without problems on your machine
• [x] Added unit tests regarding the added features

[codecov-commenter]

Codecov Report

Merging #234 (bcc9870) into developer (3bf8e23) will decrease coverage by 0.04%. The diff coverage is 27.77%.

@@              Coverage Diff              @@
##           developer     #234      +/-   ##
=============================================
- Coverage      43.18%   43.13%   -0.05%     
=============================================
  Files            126      126              
  Lines          13624    13642      +18     
  Branches        1806     1834      +28     
=============================================
+ Hits            5884     5885       +1     
- Misses          7277     7286       +9     
- Partials         463      471       +8     

Impacted Files	Coverage Δ
src/FSharp.Stats/Seq.fs	0.00% <0.00%> (ø)
tests/FSharp.Stats.Tests/Main.fs	0.00% <0.00%> (ø)
tests/FSharp.Stats.Tests/Seq.fs	100.00% <100.00%> (ø)
src/FSharp.Stats/Fitting/Spline.fs	88.23% <0.00%> (-2.95%)	:arrow_down:
src/FSharp.Stats/Testing/MultipleTesting.fs	60.19% <0.00%> (-1.95%)	:arrow_down:
src/FSharp.Stats/AlgTypes.fs	29.21% <0.00%> (-0.07%)	:arrow_down:
src/FSharp.Stats/Testing/PostHoc.fs	22.09% <0.00%> (ø)

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.