Data Analyst Portfolio

Welcome to my Data Analyst Portfolio! This repository showcases my projects and skills in data analysis, machine learning, predictive modeling, and business intelligence. The portfolio demonstrates hands-on experience with SQL, Python, regression analysis, cohort analysis, A/B testing, clustering, classification models, and AI agent development.

Check out my portfolio here: Data Analyst Portfolio

Portfolio Overview

This portfolio includes the following projects:

1. ABC Company Analysis – Descriptive statistics, EDA, and linear regression to predict property prices and provide business recommendations for revenue growth.

2. Campaign's Effect on Sales – EDA, A/B testing using t-tests, and linear regression to predict sales impact from marketing campaigns.

3. TheLook e-Commerce Analysis – SQL-based cohort analysis and BCG Matrix evaluation to analyze user retention and product category growth.

4. User Segmentation & Churn Prediction – K-Means clustering, logistic regression, EDA, and benefit–cost analysis for targeted campaigns.

5. Predict Customer Conversion – XGBoost classification, cohort analysis, and EDA to predict customer conversion and improve retention.

6. SmartLook AI Agent – AI-powered data analyst and SQL agent built with LangGraph, few-shot learning, and structured reasoning flows, featuring a React interface for automated insight generation.

Skills Demonstrated

• Statistics & Machine Learning: Descriptive statistics, regression analysis, A/B testing, clustering, classification, predictive modeling
• Data Analysis & Visualization: Exploratory data analysis (EDA), cohort analysis, business insight generation
• SQL & Databases: Complex queries, window functions, cohort analysis
• Python & AI Development: K-Means, logistic regression, XGBoost, AI agent development
• Business Intelligence: Revenue growth analysis, campaign ROI analysis, product strategy recommendations

Portfolio Design

This portfolio uses a dark, slick, modern, and responsive landing page built with HTML5, inspired by the Big Picture design, but expanded into a multipurpose portfolio site.

Demo images* courtesy of Unsplash (CC0).

*Not included in the repository.

Credits

Template: Landed by HTML5 UP
html5up.net | @ajlkn
Free for personal and commercial use under the CCA 3.0 license (html5up.net/license)

Demo Images:

• Unsplash (unsplash.com)

Icons:

• Font Awesome (fontawesome.io)

Other:

• jQuery (jquery.com)
• Scrollex (github.com/ajlkn/jquery.scrollex)
• Responsive Tools (github.com/ajlkn/responsive-tools)

Contact & Feedback

AJ (Template Author) – aj@lkn.io | @ajlkn

For questions, feedback, or bug reports regarding this portfolio, feel free to reach out or submit issues via GitHub.