It should probably have some relation to what you are going to put in REMARK 3 of your pdb file when you deposit it: REMARK 3 FREE R VALUE TEST SET SIZE (%) : 1.700 REMARK 3 FREE R VALUE TEST SET COUNT : 4924 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.004 There was a previous thread on how to calculate this value, I think maybe CNS PDB_DEPOSIT script gives it for you. Jennifer Weinreich wrote:
Hi. I am wondering what is the common practice with respect to how many significant figures should be used for reporting Rfree at different resolution? Should we always use all 4 figures that are reported by the program?
Thank you,
Jenn
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