"Extending Galton's Binomial Quincunx to the Trinomial Septcunx", 
Jennifer Harlow, Bry Ashman and Raazesh Sainudiin, 
UCDMS Research Report 2009/6, May 4, 2009

Laboratory for Mathematical Statistical Experiments
and
Department of Mathematics and Statistics
University of Canterbury
Private Bag 4800
Christchurch, New Zealand

This work is licensed under the Creative Commons Attribution-Noncommercial-
Share Alike 3.0 New Zealand Licence. To view a copy of this license, visit
http://creativecommons.org/licenses/by-nc-sa/3.0/nz/.

Abstract:
This paper discusses the development of graphical user interfaces (GUIs) 
to illustrate sampling from a trinomial distribution by the natural extension 
of Galton's Quincunx to three dimensions.

Keywords:
Multinomial distribution, GUI, vector addition, 
Galton's binomial Quincunx and the trinomial Septcunx.

How to run the GUI:
The additional files that are needed for the GUI are included in this 
directory.  The Matlab M-files need to be in the current working directory.  
Then simply call guiMultinomial from the Matlab Command Window.

Contents of the directory:
AddOutcomes.m           PdfMultOutcomes.m       createDeMoivreSampler.m
MultinomialOutcomes.m   README.txt              guiMultinomial.fig
MultinomialPdf.m        createData.m            guiMultinomial.m

Number of lines of code:
      42 AddOutcomes.m
      17 MultinomialOutcomes.m
       8 MultinomialPdf.m
      15 PdfMultOutcomes.m
      37 createData.m
      36 createDeMoivreSampler.m
     779 guiMultinomial.m
     934 total