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http://archive.ics.uci.edu/ml/datasets/Yeast

X=[1 1; 2 2; 2 1; 1 2];
Y=[1;1;0;0];
net=newff([0 3; 0 3], [2 1], {'tansig' 'purelin'}, 'trainlm');
net=init(net);
net.trainParam.epochs=20;
net.trainParam.goal=0.00001;
net=train(net,X',Y');
[X1 Y1]=meshgrid(0:0.1:3);
Z=X1;
Z(:)=sim(net,[X1(:)'; Y1(:)']);
surf(X1, Y1,Z);


X=-1:0.05:1;
X2=-1:0.01:1;
Y=sin(3*pi*X).^2.*sin(pi*X);
Y2=sin(3*pi*X2).^2.*sin(pi*X2);
net=newff([-1 1], [10 1], {'tansig' 'purelin'}, 'trainlm');
net.trainParam.epochs=500;
net.trainParam.show=50;
net.trainParam.goal=0.0000001;
net=init(net);
net=train(net,X,Y);
Z=sim(net, X2);
plot(X2, Y2, 'r', X, Y, 'gO', X2, Z, 'b');