Multimix.for contains the program code for fitting a finite
mixture of K groups to the data.
[Missing.for] contains a version of Multimix.for which can handle
missing values in the variables. [Currently
unavailable while minor changes are being made.]
Talk.dvi Dvi and Postscript versions of a paper presented
Talk.ps on 23 August 1996 to the conference ISIS96,
Information, Statistics and Induction in Science,
held in Melbourne, Australia. [Published in the
proceedings of the Conference, edited by D. L. Dowe,
K. B. Korb and J. J. Oliver, World Scientific:
Singapore]
Notes.ps is a postscript file giving information about the
input required to run Multimix. Please read this
file.
Read3.for contains program code for setting up a
parameter input file for program Multimix. This is
useful when setting up the first few runs with a data
set. Later it is easier to modify existing files
with a text editor.
Flexi This subdirectory contains a Bayesian smoothing
program written by Martin Upsdell. It is not connected
with Multimix in any way. Read about Flexi in
Flexi/Info.txt. Martin's email address is
upsdellm@agresearch.cri.nz.
EXAMPLE OF DATA FILE, INPUT FILE, AND OUTPUT FILES
Cancer11.dat contains the cancer data file.
Cancerdesc.txt A description of the data in Cancer11.dat.
2band.dat contains a parameter input file for the cancer data.
A two-component mixture model is to be fitted. The
variables are partitioned into blocks. Each block or
'cell' is assumed independent of the others within
each component. In the model fitted by 2band.dat
the distributions of the variables in each block are
1 Univariate Normal
2 3-category Discrete
3 2-category Discrete
4 Trivariate Normal
5 7-category Discrete
6 Univariate Normal
7 Univariate Normal
8 Univariate Normal
9 Univariate Normal
10 2-category Discrete
There is some re-ordering of variables to make the
variables in each block contiguous. An initial grouping
of the observations into two clusters is specified.
Alternatively initial parameter values could have
been given.
General.out is the output file generated when using the parameter
file 2band.dat.
Groups.out contains the group assignment and the posterior
probabilities of assignment to the two groups when
using the parameter file 2band.dat.
Queries to Murray Jorgensen .