MAPEX

Train and execute arbitrary untrained mapping

     B = A*(W*MAPEX) = A*(A*W)
     B = A*MAPEX(W,PAR1,PAR2, ...)
     B = A*MAPEX(UMAP,PAR1,PAR2, ...)

Input
A	Dataset or datafile or double
W	Untrained mapping
UMAP	String with name of untrained mapping
PAR1	Parameters of untrained mapping W or UMAP

Output
B	Resulting dataset, datafile or double array

Description

This routine facilitates the construction of shortcuts by training and  executing an untrained mapping by the same data. It is typically useful  for mappings like PROXM and SCALEM that are often trained and exectuted  with the same data.

Example(s)

 mink1 = proxm('m',1)*mapex
 mink1 = mapex(proxm,'m',1)    % the same
 mink1 = mapex('proxm','m',1)  % the same
 Herewith D = A*mink1 computes a dissimilarity matrix based on the
 Minkowsky_1 metric between all objects in A.

See also

datasets, mappings, proxm, scalem,