GeometryCommonDetAlgo/interface/Measurement1D.h

0001 #ifndef _COMMONDET_MEASUREMENT1D_H_
0002 #define _COMMONDET_MEASUREMENT1D_H_
0003
0004 #include <string>
0005
0006 /** A class that combines a value and it's associated uncertainty,
0007  *  or error, together. Provides a more explicit interface than
0008  *  a pair<double,double>. If you don't like the name, propose a better one!
0009  */
0010
0011 class Measurement1D {
0012 public:
0013   // construct
0014
0015   Measurement1D() : theValue(0.), theError(0.) {}
0016
0017   Measurement1D(const double& aValue) : theValue(aValue), theError(0.) {}
0018
0019   Measurement1D(const double& aValue, const double& aError) : theValue(aValue), theError(aError) {}
0020
0021   //destruct
0022
0023   ~Measurement1D() {}
0024
0025   double value() const { return theValue; }
0026
0027   double error() const { return theError; }
0028
0029   double significance() const {
0030     if (theError == 0)
0031       return 0;
0032     else
0033       return theValue / theError;
0034   }
0035
0036 private:
0037   double theValue;
0038   double theError;
0039 };
0040
0041 #endif