Update build infra; better testing with minimal deps; ruff format

.github/workflows/coverage.yml

@@ -0,0 +1,38 @@
+name: Coverage
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  coverage:
+    runs-on: ubuntu-latest
+    env:
+      FORCE_COLOR: true
+      UV_SYSTEM_PYTHON: 1
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version-file: "pyproject.toml"
+
+      - name: Set up uv
+        uses: astral-sh/setup-uv@v7
+
+      - name: Install dependencies
+        run: |
+          uv pip install --group=test . "scikit-learn<1.8.0"
+
+      - name: Run tests with coverage
+        run: |
+          pytest --cov --cov-report=xml --verbose
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          file: ./coverage.xml
+          fail_ci_if_error: true

.github/workflows/doc.yml

@@ -0,0 +1,38 @@
+name: Documentation
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  docs:
+    runs-on: ubuntu-latest
+    env:
+      FORCE_COLOR: true
+      UV_SYSTEM_PYTHON: 1
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version-file: "pyproject.toml"
+
+      - name: Set up uv
+        uses: astral-sh/setup-uv@v7
+
+      - name: Install dependencies
+        run: |
+          uv pip install --group=docs --editable .
+
+      - name: Build documentation
+        run: |
+          make -C docs clean
+          make -C docs html
+
+      - name: Upload documentation artifacts
+        uses: actions/upload-artifact@v6
+        with:
+          name: docs-artifact
+          path: docs/build/html

.github/workflows/pytest.yml

@@ -0,0 +1,119 @@
+name: PyTest
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+env:
+  FORCE_COLOR: 1
+  UV_SYSTEM_PYTHON: 1
+
+jobs:
+  test-core:
+    strategy:
+      fail-fast: false
+      matrix:
+        platform: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: ["3.10", "3.12", "3.14"]
+    runs-on: ${{ matrix.platform }}
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Set up uv
+        uses: astral-sh/setup-uv@v7
+
+      - name: Install dependencies
+        run: |
+          uv pip install --group=test . "scikit-learn<1.8.0"
+
+      - name: Test with pytest
+        run: uv run pytest --verbose
+
+  # Test against different dependency versions
+  test-dependency-combinations:
+    strategy:
+      fail-fast: false
+      matrix:
+        platform: [ubuntu-latest, windows-latest]
+        deps:
+          # Minimal supported versions and increasing gradually
+          - python-version: "3.10"
+            scipy: "scipy==1.8.0"
+            numpy: "numpy==1.22.4"
+            pandas: "pandas==2.1.1"
+            statsmodels: "statsmodels==0.14.1"
+            scikit-learn: "scikit-learn==1.2.2"
+            label: "really-old-versions"
+
+          - python-version: "3.11"
+            scipy: "scipy==1.9.3"
+            numpy: "numpy==1.25.2"
+            pandas: "pandas==2.2.0"
+            statsmodels: "statsmodels==0.14.3"
+            scikit-learn: "scikit-learn==1.4.2"
+            label: "old-versions"
+
+          - python-version: "3.12"
+            scipy: "scipy==1.14.1"
+            numpy: "numpy==2.1.3"
+            pandas: "pandas==2.3.3"
+            statsmodels: "statsmodels==0.14.4"
+            scikit-learn: "scikit-learn==1.5.2"
+            label: "mid-versions"
+
+          - python-version: "3.13"
+            scipy: "scipy==1.17.0"
+            numpy: "numpy==2.4.0"
+            pandas: "pandas==3.0.0"
+            statsmodels: "statsmodels==0.14.6"
+            scikit-learn: "scikit-learn==1.7.2"
+            label: "recent-versions"
+
+          - python-version: "3.14"
+            scipy: "scipy"
+            numpy: "numpy"
+            pandas: "pandas"
+            statsmodels: "statsmodels"
+            scikit-learn: "scikit-learn==1.7.2"
+            label: "latest-versions"
+
+    runs-on: ${{ matrix.platform }}
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v6
+        with:
+          python-version: ${{ matrix.deps.python-version }}
+
+      - name: Set up uv
+        uses: astral-sh/setup-uv@v7
+
+      - name: Install numpy (${{ matrix.deps.label }})
+        run: uv pip install "${{ matrix.deps.numpy }}"
+
+      - name: Install dependencies (${{ matrix.deps.label }})
+        run: >-
+          uv pip install --group=test .
+          "${{ matrix.deps.scipy }}"
+          "${{ matrix.deps.pandas }}"
+          "${{ matrix.deps.statsmodels }}"
+          "${{ matrix.deps.scikit-learn }}"
+
+      - name: Display installed versions
+        run: |
+          python -c "import scipy; print(f'scipy: {scipy.__version__}')"
+          python -c "import numpy; print(f'numpy: {numpy.__version__}')"
+          python -c "import pandas; print(f'pandas: {pandas.__version__}')"
+          python -c "import statsmodels; print(f'statsmodels: {statsmodels.__version__}')"
+          python -c "import sklearn; print(f'scikit-learn: {sklearn.__version__}')"
+
+      - name: Test with pytest
+        run: pytest --verbose

.github/workflows/pytest_prerelease.yml

@@ -0,0 +1,72 @@
+name: PyTest Pre-Release
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  schedule:
+    - cron: '0 3 * * SUN'
+  workflow_dispatch:
+
+env:
+  FORCE_COLOR: 1
+  UV_SYSTEM_PYTHON: 1
+
+jobs:
+  test-prerelease:
+    if: github.event_name == 'schedule' || github.event_name == 'workflow_dispatch'
+    strategy:
+      fail-fast: false
+      matrix:
+        platform: [ubuntu-latest, windows-latest]
+        python-version: ["3.10", "3.12", "3.14"]
+    runs-on: ${{ matrix.platform }}
+    continue-on-error: true
+    steps:
+    - uses: actions/checkout@v6
+
+    - name: Set up Python
+      uses: actions/setup-python@v6
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Set up uv
+      uses: astral-sh/setup-uv@v7
+
+    - name: Install dependencies
+      run: |
+        uv pip install --group=test .
+
+    - name: Install scipy prerelease
+      run: |
+        uv pip uninstall scipy
+        uv pip install -U --pre scipy
+
+    - name: Install numpy prerelease
+      run: |
+        uv pip uninstall numpy
+        uv pip install -U --pre numpy
+
+    - name: Install pandas prerelease
+      run: |
+        uv pip uninstall pandas
+        uv pip install -U --pre pandas
+
+    - name: Install statsmodels prerelease
+      run: |
+        uv pip uninstall statsmodels
+        uv pip install -U --pre statsmodels
+
+    - name: Install scikit-learn prerelease
+      run: |
+        uv pip uninstall scikit-learn
+        uv pip install -U --pre scikit-learn
+
+    - name: Install seaborn prerelease
+      run: |
+        uv pip uninstall seaborn
+        uv pip install -U --pre seaborn
+
+    - name: Test with pytest
+      run: uv run pytest --verbose

.github/workflows/ruff.yml

@@ -4,10 +4,9 @@ jobs:
   ruff:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
+      - uses: astral-sh/ruff-action@v3
       - name: "Linting"
-        uses: astral-sh/ruff-action@v3
+        run: ruff check
       - name: "Formatting"
-        uses: astral-sh/ruff-action@v3
-        with:
-          args: "format --check"
+        run: ruff format --check