Work Samples

Projects in statistical modeling, data analysis, and visualization. Each one built, written, and presented by me.

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Evidence of How I Work

Analytics Solo
Statistical Modeling

Predicting Flight Delays: Logistic Regression

Developed a binary logistic regression model to classify U.S. domestic flight arrival delays using over 1 million records from January–February 2024. Independently sourced and cleaned the dataset, engineered features, built and evaluated the model using confusion matrices and ROC-AUC in R, and produced a written analysis for a non-technical professional audience. This project demonstrates end-to-end analytical ownership: from raw data to actionable conclusion.

  • Skills: Logistic regression, feature engineering, model evaluation, data cleaning, technical writing
  • Tools: R, tidyverse, ggplot2, caret
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Visualization
Data Visualization

Tableau Public Dashboard Portfolio

A collection of published interactive dashboards exploring Taiwanese credit card payment behavior, U.S. graduate salary trends by state institution, cellphone form factor preferences, and wine market analytics. Each dashboard applies calculated fields, interactive parameters, and intentional visual hierarchy to make data accessible to non-technical audiences.

  • Skills: Dashboard design, calculated fields, interactive parameters, data storytelling, visual hierarchy
  • Tools: Tableau Public, Excel
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