# Core dependencies
numpy>=1.21.0
pandas>=1.3.0
scipy>=1.7.0
matplotlib>=3.4.0

# Development dependencies
pytest>=6.2.0
pytest-cov>=2.12.0
black>=21.0.0
flake8>=3.9.0
sphinx>=4.0.0
sphinx-rtd-theme>=1.0.0

# Optional dependencies for machine learning
scikit-learn>=1.0.0
statsmodels>=0.12.0

# Optional dependencies for visualization
plotly>=5.0.0
seaborn>=0.11.0
