FAQ: Difference between revisions
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Q: Is there a way to automatically set the high resolution limit based on an I/sigma cutoff? | Q: Is there a way to automatically set the high resolution limit based on an I/sigma cutoff? | ||
A: no. Different purposes require different cutoffs: refinement and MR may be done with data down to 1 | A: no. Different purposes require different cutoffs: refinement and MR may be done with data down to 1 or 2 sigma; sulfur SAD needs 30 sigma for finding the S sites. | ||
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Q: What is the best way to create mtz files? With the Xscale/xdsconv I often obtain intensity values that are marked *** stars - probably overshooting a formatting limit. | Q: What is the best way to create mtz files? With the Xscale/xdsconv I often obtain intensity values that are marked *** stars - probably overshooting a formatting limit. | ||
A: do you mean the *** stars appear in the output of mtzdump? That would be a problem of mtzdump only, and irrelevant for the use of the MTZ file. The XDS/XSCALE/XDSCONV route should not produce these stars (the proper Fortran formats are used throughout). | A: do you mean the *** stars appear in the output of mtzdump? That would be a problem of mtzdump output only, and irrelevant for the use of the MTZ file. The XDS/XSCALE/XDSCONV route should not produce these stars (the proper Fortran formats are used throughout). | ||
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Q: How does one check you've got the ice-rings excluded correctly ? (ie | Q: How does one check you've got the ice-rings excluded correctly ? (ie is there a visual way of | ||
checking?) | checking?) | ||
A: look at the Wilson plot. | A: look at the Wilson plot, and the list of outliers at the bottom of CORRECT.LP. | ||
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