Add regressors updating in transform loops

[alex-hse-repository]

IMPORTANT: Please do not create a Pull Request without creating an issue first.

Before submitting (must do checklist)

• Did you read the contribution guide?
• Did you update the docs? We use Numpy format for all the methods and classes.
• Did you write any new necessary tests?
• Did you update the CHANGELOG?

Type of Change

• Examples / docs / tutorials / contributors update
• Bug fix (non-breaking change which fixes an issue)
• Improvement (non-breaking change which improves an existing feature)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Proposed Changes

Related Issue

Closing issues

closes #328

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (breaking_change/regressors@40fe88c). Click here to learn what that means.
The diff coverage is n/a.

@@                      Coverage Diff                      @@
##             breaking_change/regressors     #374   +/-   ##
=============================================================
  Coverage                              ?   87.57%           
=============================================================
  Files                                 ?       96           
  Lines                                 ?     4741           
  Branches                              ?        0           
=============================================================
  Hits                                  ?     4152           
  Misses                                ?      589           
  Partials                              ?        0           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 40fe88c...17d737a. Read the comment docs.

[martins0n]

It's better to update breaking_change/regressors.
Current diff has redundant code.

[martins0n]

👍