an easy one?

*To*: mathgroup at smc.vnet.net*Subject*: [mg88886] an easy one?*From*: Francisco Gutierrez <fgutiers2002 at yahoo.com>*Date*: Tue, 20 May 2008 02:28:06 -0400 (EDT)

I have a code (for clustering) that works well with FixedPointList. It takes the following form: FixedPointList[veamos[dataset,#]&, prototipos,10] where veamos is a function that acts on the dataset and prototipos, and prototipos is also a list of lists (for example {{5,5},{10,10}} ) But of course using FixedPointList is imperfect. I want to use NestWhileList instead, with a criterion of termination acting on prototipos (i.e., if the absolute value of the substraction of the penultimate prototipos and the last prototipos is less than a certain amount, say 0.01, then stop). But I haven´t been able. Can somebody help me? Thanks Francisco Gutiérrez