objective.h File Reference

interface of objective function used by xgboost. More...

#include <dmlc/registry.h>
#include <xgboost/base.h>
#include <xgboost/data.h>
#include <xgboost/model.h>
#include <xgboost/generic_parameters.h>
#include <xgboost/host_device_vector.h>
#include <vector>
#include <utility>
#include <string>
#include <functional>

Include dependency graph for objective.h:

Go to the source code of this file.

Classes
class	xgboost::ObjFunction
	interface of objective function More...
struct	xgboost::ObjFunctionReg
	Registry entry for objective factory functions. More...

Namespaces
	xgboost
	namespace of xgboost

Macros
#define	XGBOOST_REGISTER_OBJECTIVE(UniqueId, Name)
	Macro to register objective function. More...

Detailed Description

interface of objective function used by xgboost.

Copyright 2014-2019 by Contributors

Author

Tianqi Chen, Kailong Chen

Macro Definition Documentation

XGBOOST_REGISTER_OBJECTIVE

#define XGBOOST_REGISTER_OBJECTIVE	(		UniqueId,
			Name
	)

Value:

  static DMLC_ATTRIBUTE_UNUSED ::xgboost::ObjFunctionReg &              \
  __make_ ## ObjFunctionReg ## _ ## UniqueId ## __ =                    \
      ::dmlc::Registry< ::xgboost::ObjFunctionReg>::Get()->__REGISTER__(Name)

Macro to register objective function.

// example of registering a objective
XGBOOST_REGISTER_OBJECTIVE(LinearRegression, "reg:squarederror")
.describe("Linear regression objective")
.set_body([]() {
    return new RegLossObj(LossType::kLinearSquare);
  });