Guangming L.

Guangming L.

Data Scientist and R Expert

Ann Arbor, United States



What's the difference

I have 7 years of experience in data analysis. I'm the Chief Data Scientist and founder of, a data science consulting company in Ann Arbor, Michigan, US. I also teach people how to do data science using the R programming language at, where you can receive high quality training materials for free.

I used to work as an analytic consultant for FICO, where I built scorecard for Picture People to predict customer response rate to their marketing campaigns, which doubled t…


Work History & Feedback

Create stats charts from excel data on public company estimate changes over time

“Thanks for the superb quality of work!”
3 hrs @ $55.56/hr
Earned $139

R packages "quantstrat/blotter" expert

“Guangming is a highly skilled R engineer. Communicates well and gets job done professionally. I'm looking forward to working with him again.”
Fixed Price $222

Psychometrician expert on NCE's

“Guangming Lang is an excellent resource to someone--like myself--who has a minimal background in statistics. He answered the educational statistics questions posed to him in a timely and non-technical manner, offering both data and charts with his explanations. He explained everything clearly and taught me some new approaches. I highly recommend him to anyone with a problem in statistics who needs assistance in applying statistical data to a particular problem.”
11 hrs @ $55.56/hr
Earned $593

Statistical analysis of an experimental dataset

“Knowledgeable and precise, did exactly the job asked of him.”
Fixed Price $1,111

Decision Support Systems - Statistical Analysis

“Guangming was consistent in his communication and clarification of any questions I had and submitted the work early.”
Fixed Price $122

Data Normalization and Analysis

“Excellent communications and very fast turnaround on our statistical analysis project.”
6 hrs @ $55.56/hr
Earned $306

Data mining - Classification

Job in progress

Fixed Price $450
Tests Taken
Name Percentile Score

Analytical Skills Test


Business Mathematics Test


Data Interpretation Test


English To Mandarin Translation Skills Test


Statistics Test