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Dear Inge,

the log file shows the number of reflection RECORDS - I suppose the
difference is due to mtz-format storing (hkl) , F and DANO, i.e. mtz
does not have an extra entry for (-h -k -l), because it is stored in
the same record as (hkl).

Tim.

On 09/14/2012 03:46 PM, Inge Van Molle wrote:
> Dear all,
> 
> I have a question regarding the number of reflections in the output
> file of XDSCONV, given a number of reflections in the input file.
> 
> I have noticed that the number of reflections in the output file is
> only ~50% of the once accepted from the input file (ie the unique
> reflections)(input file is XSCALE.HKL or CORRECT_ASCII.HKL). This
> is in the case of FRIEDEL'S_LAW=FALSE: SPACE_GROUP_NUMBER=   91 
> UNIT_CELL_CONSTANTS=    93.57    93.57   364.05  90.000  90.000
> 90.000 FRIEDEL'S_LAW=FALSE MERGE=TRUE NUMBER OF REFLECTION RECORDS
> ON INPUT FILE      740375 NUMBER OF IGNORED REFLECTIONS (I<
> -3.0*SIGMA)        0 NUMBER OF REFLECTIONS ACCEPTED FROM INPUT FILE
> 106783
> 
> NUMBER OF UNIQUE REFLECTIONS ASSIGNED TO TEST SET     2864 NUMBER
> OF UNIQUE TEST REFLECTIONS INHERITED              0 NUMBER OF
> UNIQUE TEST REFLECTIONS NEWLY GENERATED     2864
> 
> NUMBER OF REFLECTION RECORDS ON OUTPUT FILE      57265 NUMBER OF
> RECORDS ASSIGNED TO WORKING SET        54401 NUMBER OF RECORDS
> ASSIGNED TO TEST SET            2864
> 
> In case FRIEDEL'S_LAW=TRUE, the number of unique reflections is
> just lower, and in the case the number of reflections in the output
> file does match the number of accepted reflections from the input
> file: SPACE_GROUP_NUMBER=   91 UNIT_CELL_CONSTANTS=    93.57
> 93.57   364.05  90.000  90.000  90.000 FRIEDEL'S_LAW=TRUE 
> MERGE=TRUE NUMBER OF REFLECTION RECORDS ON INPUT FILE      740115 
> NUMBER OF IGNORED REFLECTIONS (I< -3.0*SIGMA)        0 NUMBER OF
> REFLECTIONS ACCEPTED FROM INPUT FILE   57244
> 
> NUMBER OF UNIQUE REFLECTIONS ASSIGNED TO TEST SET     2863 NUMBER
> OF UNIQUE TEST REFLECTIONS INHERITED              0 NUMBER OF
> UNIQUE TEST REFLECTIONS NEWLY GENERATED     2863
> 
> NUMBER OF REFLECTION RECORDS ON OUTPUT FILE      57244 NUMBER OF
> RECORDS ASSIGNED TO WORKING SET        54381 NUMBER OF RECORDS
> ASSIGNED TO TEST SET            2863
> 
> For some reason, the outcome of having Friedel's law false or true
> is thus the same. Can anyone explain this to me? A colleague and I
> checked whether she sees the same using Pointless&Scala to get mtz
> file, and this has the same effect.
> 
> Kind regards,
> 
> Inge
> 
> Dr. Inge Van Molle Department of Chemistry University of Cambridge 
> Lensfield Road Cambridge CB2 1EW
> 
> Tel 01223330190 [email protected]
> 

- -- 
- --
Dr Tim Gruene
Institut fuer anorganische Chemie
Tammannstr. 4
D-37077 Goettingen

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