% This Fundamental Clustering Problems Suite (FCPS) may serve as a minimal test for new invented cluster algorithms.
%
% Every new invented algorithm should at least cluster the FCPS correctly.
%
% The data sets may be used as long as the following citation is referenced in any publication
% concering any of this data:
%
% Alfred Ultsch, Clustering with SOM: U*C, in Proc. Workshop on Self Organizing Feature Maps ,pp 31-37 Paris 2005.
%
% main problem: almost touching clusters
%
@relation tetra

@ATTRIBUTE x REAL
@ATTRIBUTE y REAL
@ATTRIBUTE z REAL
@ATTRIBUTE class {1,2,3,4}

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