Thanks a lot!

> Hailiang Zhang wrote:
>> Hi,
>>
>> I want to calculate the R factor based on the given Fo, Fc, and sigFo by
>> a
>> mtz file. Can some CCP4 tools do this? Thanks!
>>
>> Best Regards, Hailiang
>>
>
> Yes- rstats
>
> something like
>
> rstats hklin sfall.mtz hklout rescaled.mtz  <<eof-rstats
> LABIN FP=FP SIGFP=SIGFP FC=FC PHIC=PHIC
> TITLE  FP column scaled to FC
> #RESOLUTION 999.0 2.6                    ! default is 1 to 100 Ang
> PRINT LAST                            ! default is LAST
> CYCLES 10                               ! default is 6
> !LIST 0
> OUTPUT FOFC                            ! default is FOFC
> SCALE 1.0   ! 52.5                              ! default is 1.0
> !REJECT DELTA 4000                      ! default is no rejections
> WEIGHTING_SCHEME NONE                 ! default is NONE
> WIDTH_OF_BINS RTHETA=0.005 FBINR=100    ! defaults are .01 and 1000
> PROCESS FCAL                           ! default is FCAL
> eof-rstats
>
>
> This will rescale Fc to Fo or vice versa, depending on "process".
> But if they are already optimally scaled that shouldn't make any
> difference.
> it prints out R and weighted R in bins and overall.
>
> OR, scaleit, using
> labin    FP=FP SIGFP=SIGFP   FPH1=Fc
> And take R-merge on F as R??
>
> OR, use fft to calculate an Fc,Phic map and use sfall to calculate
> structure factors
> from the map (should precisely replicate the input Fc) giving it the Fobs
> for reference
>
>

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