(yes, I really need an updated photo)

John W. Emerson (Jay)

Department of Statistics
Yale University

Professor of Statistics, Adjunct

Director of Graduate Studies

Fellow, Jonathan Edwards College
Secretary of the Senior Common Room

Contact Information


    Phone: (203) 432-0638
    Office: 24 HH, Room B06

    Mailing addresses

Certificate Advising August 2022

* Friday, August 19, 2022, 11-12

* Friday, August 26, 2022, 10-11 (in person, 24 Hillhouse Ave)

* Friday, August 26, 2022, 11-12


Zoom Meeting ID: 991 5925 7410





Of interest (update)

The Bigmemory Project For massive matrices in R, including support for shared memory.

BH: R package for using Boost libraries


gpairs: The generalized pairs plot

barcode: The barcode plot

bcp: R package for Bayesian change point analysis (JSS paper).

Don't drown in the data: big data and advice for students

Preprint: Scalable Strategies for Computing with Massive Data: to appear in the Journal of Statistical Software.

Amazon EC2, Big Data, and High-Performance Computing: from the Newsletter of the Sections on Statistical Computing and Graphics.

Links I Frequently Use (update)
    Grad Advising
    Degree Audit
    Student advising
    Dynamic Forms
    DGS Stuff
Courses (links?)

    100b: Introductory Statistics
    128b: Real-World Statistics
    230/530b: Introductory Data Analysis
    242/542b: Theory of Statistics
    361/661a: Advanced Data Analysis
    625a: Statistical Case Studies
    626b: Practical Work
    627b: Statistical Consulting
    662a: Computational Statistics


"To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of." - Sir Ronald A Fisher

"The plural of anecdote is not data." - Roger Brinner

"The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data." - John Tukey