feat: add eval option to sample.getExpectation() showing param modified yields #59

	name: PR Tests

	on:
	pull_request:
	branches:
	- master

	jobs:
	linter:
	name: Linter
	runs-on: ubuntu-latest

	steps:
	- name: Check out Git repository
	uses: actions/checkout@v2

	- name: Set up Python
	uses: actions/setup-python@v1
	with:
	python-version: 3.9

	- name: Install Python dependencies
	run: pip install black flake8

	- name: Run black
	uses: wearerequired/lint-action@v2
	with:
	auto_fix: true
	black: true
	black_auto_fix: true

	- name: Lint with flake8
	run: flake8 rhalphalib --count --show-source --statistics

	test:
	name: Run pytest (Python ${{ matrix.python-version }}, ROOT ${{ matrix.root-version }})
	needs: linter
	runs-on: ubuntu-latest
	strategy:
	max-parallel: 4
	fail-fast: true
	matrix:
	python-version: [3.7]
	root-version: [6.16, 6.22]

	steps:
	- uses: actions/checkout@v1
	- name: Set up Conda
	uses: conda-incubator/setup-miniconda@v2.2.0
	with:
	python-version: ${{ matrix.python-version }}
	miniforge-variant: Mambaforge
	channels: conda-forge,defaults
	channel-priority: true
	activate-environment: condaenv
	- name: Install ROOT ${{ matrix.root-version }}
	shell: bash -l {0}
	run: \|
	mamba install -c conda-forge numpy scipy nomkl root==${{ matrix.root-version }}
	- name: Install package
	shell: bash -l {0}
	run: \|
	pip install -e .
	- name: Test with pytest
	shell: bash -l {0}
	run: \|
	pip install pytest
	pytest tests

Provide feedback