Re: [ccp4bb]: Adding amplitude data to an intensity-containing .mtz

["Eleanor J. Dodson" <ccp4@ysbl.york.ac.uk>]

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Walter Lloyd Ash wrote:
> 
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> 
>   I could not find information in the ccp4 program suite documentation on
> how to go about adding amplitude data (F-obs/F-sigma) to a .mtz file
> generated by scalepack2mtz (with the denzo-generated reflection file
> containing intensity data as input).  If anybody could point me to the
> right utility or suggest the method they usually use that would be
> appreciated.
> 
>   The other programs I've used to date (CNS, GLRF) either generate their
> own files with amplitude data, or allow you to specify whether you're
> inputting I's or F's.  The .mtz-using program I want to use does not have
> this option and expects F's.
> 
> Thanks,
> 
> Walter Ash
> wlash@ucalgary.ca


 scalepack2mtz with truncate assumes scalepack merged output; ie h k l
I+ SIGI+ I- SIGI- and converts that to

 h kl  <F> SIGF F+ SIGF+ F- SIGF- <I> etc..

 Are you using the GUI? It is the task under Data reduction
                                             Import scaled Denzo data

 Eleanor