Free Split and Merge Expectation Maximization for MultiVariate Gaussian Mixture : spiral2d(N) - File Exchange

Code covered by the BSD License

from Free Split and Merge Expectation Maximization for MultiVariate Gaussian Mixture by Sebastien PARIS
FSMEM can estimate MVGM parameters and number of conpounds via split/merge cluster moves

spiral2d(N)
function Z = spiral2d(N) t = rand(1 , N); temp1 = 2 + 10t; temp2 = 7pit; Z = [temp1.sin(temp2) ; temp1.cos(temp2)] + 0.5randn(2 , N);