Dear all,

I want to modify the measurement in the hybridization expansion of dmft and I looked through the source code in alps/applications/dmft/qmc and its two subdirectories hybridization/ and interaction_expansion/. In the hybridization/impurity.h, a paragraph of codes looks

  // create measurement objects
  measurements << RealVectorObservable("n");
  measurements << RealVectorObservable("order");
  measurements << vec_obs_t("Greens");
  measurements << vec_obs_t("Greens_4point");
  measurements << vec_obs_t("Greens_4point_ud");
  measurements << RealObservable("sign");
  measurements << RealObservable("MatrixSize");

  measurements << RealVectorObservable("overlap");

Where is the 'measurements' defined?