A rotation merge now keeps each acentric reflection's Bijvoet split - the
inverse-variance I(+)/I(-) from the same scaled fulls - even when the merge is
Friedel-averaged (the default, no -A). IMEAN stays the primary intensity and is
bit-identical to before; the split is purely additive and scaled
non-anomalously, so a weak anomalous signal is preserved in the output without
having to reprocess with -A. French-Wilson now also fills F(+)/F(-) from the two
hands (one pass, shared Wilson prior).
Writers: the default (Friedel-merged) MTZ and mmCIF now carry IMEAN plus
I(+)/I(-) and F/F(+)/F(-) whenever a reflection has an anomalous split (the
stills path, which computes none, keeps the previous columns). A missing mate or
a centric is emitted as the CCP4 missing-value flag (NaN).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
leonarski_fandClaude Opus 4.8
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