Example from: 
   Nina Zumel and John Mount "Introduction to Data Science" course.
   See http://winvector.github.io/IntroductionToDataScience/ for details


Data from:

   From:  http://www.amstat.org/publications/jse/jse_data_archive.htm

   Home prices set:
   NAME: Modeling home prices using realtor data
   TYPE: Random sample
   SIZE: 76 observations, 19 variables
   The article associated with this dataset appears in the Journal of Statistics Education, Volume 16, Number 2 (July 2008).

   description: http://www.amstat.org/publications/jse/datasets/homes76.txt
   set: http://www.amstat.org/publications/jse/datasets/homes76.dat.txt
   Journal article: http://www.amstat.org/publications/jse/v16n2/datasets.pardoe.html
   SUBMITTED BY:
   Iain Pardoe
   Lundquist College of Business
   University of Oregon
  1208 University of Oregon
   Eugene, OR 97403