Puts the Sparse OGP hyperparametrs into a vector.
hp = ogppak;
hp = ogppak takes the GLOBAL Gaussian Process data structure net and
combines the hyperparameters into a single row vector hp. The
hyperparameter vector is needed to optimise the OGP structure.
The transformed hyperparameters returned by this function are used in the MLII optimisation method.
ogp, ogpunpak, ogpevidgrad, ogptrain
Copyright (c) Lehel Csató (2001-2004)