The data are > 90% complete at low resolution, where the completeness is more important, so this is probably fine - you would probably benefit from better detector placement in the future as the data are good to the edge.
Was the detector offset or just too far away? 120° for an oP lattice should be relatively complete - as appears to be the case for low angle data here. The reflections you have measured are almost certainly a better estimate of F^2 than 0, which is what you are saying if you do throw them away :-) Best wishes Graeme > On 25 Nov 2019, at 13:11, Matthias Oebbeke <[email protected]> > wrote: > > Dear ccp4 Bulletin Board, > > I collected a dataset at a synchrotron beamline and got the statistics > (CORRECT.LP) after processing (using xds) shown in the attached pdf-file. > > Do you think this dataset is usable, due to its low completeness? As you can > see in the attached file the completeness is just 50% in the highest > resolution shell, whereas the I over Sigma is above 2 and also the CC 1/2 > (80%) and the R factors (36.8%) have reasonable values. Furthermore the > overall statistic are good regarding R factor, CC 1/2 and I over Sigma. The > only problem seems to be the completeness. If I would set the cut-off at a > lower resolution to get good completeness, I would throw away nearly half of > my reflections. > > I'm happy to here your opinion. In Addition to that: The space group is > orthorhombic and the dataset was collected over 120° using fine slicing > (0.1°). > > > Best regards, > > Matthias Oebbeke > > > -- > Matthias Oebbeke, M.Sc. > Research Group of Professor Dr. G. Klebe > Institute of Pharmaceutical Chemistry > Philipps-University Marburg > Marbacher Weg 6, 35032 Marburg, Germany > Phone: +49-6421-28-21392 > Mail: [email protected] > www.agklebe.de > > ######################################################################## > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1 > <CORRECT_LP.pdf> -- This e-mail and any attachments may contain confidential, copyright and or privileged material, and are for the use of the intended addressee only. If you are not the intended addressee or an authorised recipient of the addressee please notify us of receipt by returning the e-mail and do not use, copy, retain, distribute or disclose the information in or attached to the e-mail. Any opinions expressed within this e-mail are those of the individual and not necessarily of Diamond Light Source Ltd. Diamond Light Source Ltd. cannot guarantee that this e-mail or any attachments are free from viruses and we cannot accept liability for any damage which you may sustain as a result of software viruses which may be transmitted in or with the message. Diamond Light Source Limited (company no. 4375679). Registered in England and Wales with its registered office at Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1
