Constant + linear covariance function
 TolFun reached. Func-count 31. Final f(x)=103.189. Elapsed time 0.44
Constant + squared exponential covariance function
(w.r.t. the first input dimension) + linear (w.r.t.
the second input dimension)
 TolFun reached. Func-count 33. Final f(x)=54.0344. Elapsed time 0.82
Additive squared exponential covariance function
 TolFun reached. Func-count 35. Final f(x)=26.9207. Elapsed time 0.76
Squared exponential covariance function
 TolFun reached. Func-count 29. Final f(x)=30.6121. Elapsed time 0.46
Additive neural network covariance function
 TolFun reached. Func-count 33. Final f(x)=24.4157. Elapsed time 1.09
Neural network covariance function
 TolFun reached. Func-count 54. Final f(x)=24.2467. Elapsed time 1.23

 gp hyperparameters: 
 
   -3.1648    1.4213    0.5037   -2.9099

Demo completed in 0.273 minutes
