Dear Mirek, it is a stubborn myth the Free-R flags need to be conserved. You can simply regenerate a new set of flags. This does not compromise the free F-value. This is based on what I would call Tickle's conjecture, even though with one of his latest emails on the ccp4bb, where he explained this in an extremely beautiful manner, it is not a conjecture anymore, rather a corollary. It is sad that even some well established crystallographers stick to said myth. Best regards, Tim cc ccp4bb for information Am 25.06.2019 04:09, schrieb Cygler, Miroslaw:
Hi Phenixers, I have copied mtz file to a new file with a lower resolution limit using the "Reflection file editor” tool. I copied all arrays to the output file. When I attempted to continue refinement with the new mtz file, a message appears saying that there are no R-free flags in the mtz file. Yet, the new file contains the R-free-flags column but the values are inverted, 1 is changed to 0 and 0 is changed to 1. In the output option dialog the box “Preserve original flag values” was checked. How to fix this? Thanks,
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-- -- Tim Gruene Head of the Centre for X-ray Structure Analysis Faculty of Chemistry University of Vienna Phone: +43-1-4277-70202 GPG Key ID = A46BEE1A