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AUXIL\

em.pro


top EM

EM, G, U, Ms, Ps, Cs [, unfrozen=unfrozen] [, wnd=wnd], maxiter=maxiter, miniter=miniter [, pdens=pdens] [, fhv=fhv] [, T0=T0] [, verbose=verbose], num_cols=num_cols, num_rows=num_rows [, beta=beta] [, status=status]

Clustering with Gaussian mixtures, EM algorithm:

Gath, I. and Geva, A. B. (1989). Unsupervised optimal fuzzy clustering. IEEE Transactions on Pattern Analysis and Machine Intelligence, 3(3), 773–781.

Parameters

G in required

observations data matrix

U in out required

initial class probability membership matrix (column vectors)

Ms out required

cluster means

Ps out required

cluster priors

Cs out required

cluster covariance matrices

Keywords

unfrozen in optional

indices of the observations which take part in the iteration (default all)

wnd in optional

window for displaying the log likelihood

maxiter
miniter
pdens out optional

partition density

fhv out optional

fuzzy hypervolume

T0 in optional

initial annealing temperature (default 1.0)

verbose in optional

set to print output info to IDL log (default 0)

num_cols in required

if beta>0 image dimensions

num_rows
beta in optional

spatial field parameter

status out optional

0 if successful else 1

Author information

Author:

Mort Canty (2013)

Other attributes

Uses:

INTERSECTION:, ,

COYOTE

File attributes

Modification date: Mon Aug 18 13:32:17 2014
Lines: 231
Docformat: rst rst