sig
exception Optim_exception of exn
val train :
?step:float ->
?tol:float ->
?epsabs:float ->
?report_trained_model:(iter:int ->
Gpr_interfaces.Sigs.Eval.Trained.t -> unit) ->
?report_gradient_norm:(iter:int -> float -> unit) ->
?kernel:Eval.Spec.Kernel.t ->
?sigma2:float ->
?inducing:Eval.Spec.Inducing.t ->
?n_rand_inducing:int ->
?learn_sigma2:bool ->
?hypers:Gpr_interfaces.Sigs.Deriv.Deriv.Spec.Hyper.t array ->
inputs:Eval.Spec.Inputs.t ->
targets:Lacaml.D.vec -> unit -> Gpr_interfaces.Sigs.Eval.Trained.t
end