---

VariablePower Class Reference

#include <PhysicsTools/UtilAlgos/interface/CachingVariable.h>

Inheritance diagram for VariablePower:

List of all members.

Public Member Functions
CachingVariable::evalType	eval (const edm::Event &iEvent) const
	VariablePower (CachingVariableFactoryArg arg)
	~VariablePower ()
Private Attributes
double	power_
std::string	var_

---

Detailed Description

Definition at line 482 of file CachingVariable.h.

---

Constructor & Destructor Documentation

VariablePower::VariablePower

(

CachingVariableFactoryArg

arg

)

[inline]

Definition at line 484 of file CachingVariable.h.

References CachingVariable::addDescriptionLine(), edm::ParameterSet::getParameter(), CachingVariable::CachingVariableFactoryArg::iConfig, CachingVariable::CachingVariableFactoryArg::m, CachingVariable::CachingVariableFactoryArg::n, power_, ss, and var_.

00484                                                :
00485     CachingVariable("Power",arg.n,arg.iConfig){
00486     power_=arg.iConfig.getParameter<double>("power");
00487     var_=arg.iConfig.getParameter<std::string>("var");
00488     std::stringstream ss("Calculare X^Y, with X=");
00489     ss<<var_<<" and Y="<<power_;
00490     addDescriptionLine(ss.str());
00491     arg.m[arg.n]=this;
00492   }
  ~VariablePower(){}

VariablePower::~VariablePower

(

)

[inline]

Definition at line 493 of file CachingVariable.h.

{}

---

Member Function Documentation

CachingVariable::evalType VariablePower::eval

(

const edm::Event &

iEvent

)

const [virtual]

Reimplemented from CachingVariable.

Definition at line 30 of file CachingVariable.cc.

References CachingVariable::compute(), funct::exp(), funct::log(), p, power_, v, and var_.

                                                                          {
  const CachingVariable * var=edm::Service<VariableHelperService>()->get().variable(var_);
  if (!var->compute(iEvent)) return std::make_pair(false,0);

  double v=(*var)(iEvent);
  double p=exp(power_*log(v));
  return std::make_pair(true,p);
}

---

Member Data Documentation

double VariablePower::power_ [private]

Definition at line 499 of file CachingVariable.h.

Referenced by eval(), and VariablePower().

std::string VariablePower::var_ [private]

Definition at line 500 of file CachingVariable.h.

Referenced by eval(), and VariablePower().

---

The documentation for this class was generated from the following files:

• PhysicsTools/UtilAlgos/interface/CachingVariable.h
• PhysicsTools/UtilAlgos/src/CachingVariable.cc

---