Degeneracy and discreteness in cosmological model fitting

Degeneracy and discreteness of standard cosmological model is studied to improve definition of discreteness factor \mathcal G ．Two sets of observational data are applied to the MC-MC method to complete fitting of cosmological parameters, to test influence of modified factor \mathcal G ．The modified \mathcal G factors of CC data set are generally smaller than BAO data set, confidence interval of CC data set is larger than BAO data set．This indicates that modified \mathcal G factors can indeed reflect ability of data to distinguish different cosmological models．Confidence interval of BAO+CC combined data set is less than two original data sets．This indicates that when using modified \mathcal G factors to compare distinguishing ability of two data sets, the number of data points in the two data sets should be almost the same．