[phenixbb] model_vs_data

Hi everybody, I 've run model_vs_data for one of my structures and here is what I got: Information extracted from PDB file header: program_name : REFMAC year : None r_work : 0.15793 r_free : 0.19845 high_resolution : 1.45 low_resolution : 36.92 sigma_cutoff : None matthews_coeff : None solvent_cont : None TLS : False (number of groups: 0) After applying resolution and sigma cutoffs: n_refl_cutoff : 26357 r_work_cutoff : 0.1450 r_free_cutoff : 0.1687 Can someone, please, explain why there is such a big difference in R values? When I do refinement in phenix I get practically the same results that Refmac produces. Thanks, Karolina