Documentation of samfun
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Function Synopsis
[ObjV, Grad] = samfun(x, DistDataHigh)
Help text
Objective function for Sammon mapping, calculates derivatives as well
This function calculates the objective values (stress function)
for Sammon mapping.
If a second output parameter is provided, the derivatives are
calculated as well.
This function is normally called from the optimization function.
Syntax: [ObjV, Grad] = samfun(x, DistDataHigh)
Input parameter:
x  data points, every row presents one lowdimensional data point
DistDataHigh  distances betwenn data points in high dimension
Output parameter:
ObjV  objective value
See also: sammon
CrossReference Information
This function calls 
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This document is part of
version 3.8 of the
GEATbx: Genetic and Evolutionary Algorithm Toolbox for use with Matlab 
www.geatbx.com.
The Genetic and Evolutionary Algorithm Toolbox is
not public domain.
© 19942006 Hartmut Pohlheim, All Rights Reserved,
(support@geatbx.com).