fix: remove unused sum[4] in LinearRegression #40

	# This workflow will build a golang project
	# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go

	name: Go
	on: [push, pull_request]
	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: Set up Go
	uses: actions/setup-go@v3
	with:
	go-version: "stable"

	- name: Run test with coverage
	run: go test -race -coverprofile=coverage.txt -covermode=atomic

	- name: Upload coverage to Codecov
	# Secrets are not available to workflows triggered from forked PRs.
	# Without a token, Codecov may rate limit uploads (429).
	if: github.event_name != 'pull_request' \|\| github.event.pull_request.head.repo.full_name == github.repository
	uses: codecov/codecov-action@v4
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	files: coverage.txt
	fail_ci_if_error: true
	verbose: true

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