For manually masking out the rings, you can use mtz2various to dump reflections in resolution ranges without ice in ascii, cat them all together and use f2mtz to read them into a new mtz file. Example attached.
You might also be able to do it using mtzutils to write out mtz files in limited resolution ranges, and then to merge them back into one file. On 03/04/2021 10:39 AM, Alexander Brown wrote:
Hi all, I'm struggling with a dataset I have which shows very poor data quality around 3.6A, or exactly where I can see a significant ice ring in the images. I'm trying to use mosflm to process the image files, and I have seen a previous thread on the message board where it is recommended to turn on three tick boxes for ice ring exclusion, but despite this, as I continue through the processing sequence and use aimless, it still flags that the data is affected by an ice ring at that resolution, which you can also see in the quality/resolution graphs. I have even tried making a mask in the moslfm viewer using the mask tool to cover the entire ice ring, but to no avail. Finally I did have a go at using EVAL which is mentioned in the original post about ice rings, but it seems it depends on libgfortran3 packages which have now been replaced with libgfortran5 and so I didn't get very far. Is there a manual way to mask out certain data, or could there be something with my data that is causing the automatic ice ring resolution not to be as effective? Thank you! *Alex Brown* PhD Student School of Pharmacy Biodiscovery Institute (previously Centre for Biomolecular sciences) University of Nottingham Nottingham NG7 2RD This message and any attachment are intended solely for the addressee and may contain confidential information. If you have received this message in error, please contact the sender and delete the email and attachment. Any views or opinions expressed by the author of this email do not necessarily reflect the views of the University of Nottingham. Email communications with the University of Nottingham may be monitored where permitted by law. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 <https://urldefense.com/v3/__https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1__;!!GobTDDpD7A!aScP1-oU5x9GKsPC-vA4kG9hD2Klk5_UHIBGnlkKPZ1pG-OJny_PrbE9PL73SrLp$>
######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/
icefilter.csh
Description: C-Shell script