func (r *RegularizingCost) Cost(a linalg.Vector, x autofunc.Result) autofunc.Result {
regFunc := autofunc.SquaredNorm{}
cost := r.CostFunc.Cost(a, x)
for _, variable := range r.Variables {
norm := regFunc.Apply(variable)
cost = autofunc.Add(cost, autofunc.Scale(norm, r.Penalty))
}
return cost
}
func (r *RegularizingCost) CostR(v autofunc.RVector, a linalg.Vector,
x autofunc.RResult) autofunc.RResult {
regFunc := autofunc.SquaredNorm{}
cost := r.CostFunc.CostR(v, a, x)
for _, variable := range r.Variables {
norm := regFunc.ApplyR(v, autofunc.NewRVariable(variable, v))
cost = autofunc.AddR(cost, autofunc.ScaleR(norm, r.Penalty))
}
return cost
}