Andrew Hayles

Helping organizations decode their data. I combine Python, SQL, and statistical analysis to uncover trends in consumer behavior and operational performance. Below, you will find case studies demonstrating my work with large-scale e-commerce and review datasets.

Recent Projects

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Brazilian Ecommerce Dataset

Analyzed 100,000+ orders from the Olist E-Commerce dataset to provide actionable recommendations for Marketing and Logistics teams.

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Indian Credit Dataset

Analyzed whether credit applications were approved or not and what factors affected these decisions significantly. Performed Bayesian probability analysis using PyMC and Arviz to find the key contributors to the decisions.

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Yelp Academic Dataset

Designed and implemented relational database for Yelp academic dataset. Analyzed 100,000+ reviews using SQL and Python to identify key differentiators between 5-star and 1-star businesses through sentiment analysis and statistical significance testing.

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