def CostFactory2(self,pts,datapts,nparams):
"""generates a cost function instance from datapoints
and evaluation points"""
F = CF()
F.addModel(self.ForwardFactory,self.__name__,nparams)
self.__cost__ = F.getCostFunction(evalpts=pts,observations=datapts,sigma=self.__sigma__,metric=self.__metric__)
return self.__cost__
def CostFactory(self,target,pts):
"""generates a cost function instance from list of coefficients & evaluation points"""
datapts = self.evaluate(target,pts)
F = CF()
F.addModel(self.ForwardFactory,len(target),self.__name__)
self.__cost__ = F.getCostFunction(evalpts=pts,observations=datapts,sigma=sqrt(datapts),metric=self.__metric__)
return self.__cost__