Guangming Lang

Data scientist and R programmer with 7 years of experience. I specialize in solving mission critical business problems using advanced machine learning algorithms and data & web technologies. I have analyzed data from various industries including finance, marketing, retail, consumer products, medicine and entertainment.

Work Experience


Founder and Chief Data Scientist

June 2013 – Present

Ann Arbor, Michigan

Cabaceo LLC is a data science consulting company, where we use machine learning and web technologies to help buisness solve their problems. Our largest project to date is > $100,000.

Work Experience


Analytic Consultant

June 2007 – August 2008

Austin, Texas

I built scorecards for the Picture People, predicting response rates to their marketing campaigns. I also cleaned large volume of data and performed customer segmentations using unsupervised learning algorithms for Canadian Tire Bank.


  • Data Cleaning & Tidying
  • Data Visualization
  • Descriptive & Exploratory Analysis
  • Inferential & Predictive Analysis
  • Supervised and Unsupervised Machine Learning Algorithms
  • R, Shiny, ShinyDashboard

Open Source

R packages:

  • ezplot: It allows you to easily make common statistical charts in ggplot2 style.
  • RAirbnb: It allows you to obtain real time data from Airbnb via their API.
  • RTabelog: It allows you to easily scrape data from, a yelp-like website in Japan.
  • RGurunavi: It allows you to obtain real time data from Gurunavi (a Japanese food media company) via their API.

Giving Back

  • I teach people how to do data analysis using R at, where you can receive high quality training materials, practical tips and working R scripts for FREE.


University of Michigan

MS, Biostatistics

2009 – 2012

Ann Arbor, Michigan

In addition to getting my degree in biostats, I also took many finance, economics, financial engineering and programming courses.


New College of Florida

BA, Math

2004 – 2007

Sarasota, Florida

Thesis: Mixture Model of Mutagenetic Trees

Honors & Awards

  • National Science Foundation Graduate Research Fellowship
  • Florida Bright Future Scholar
  • New College of Florida Scholarship