Hi Folks, I have seen this when you take data from XSCALE to merge in Scala - the former puts I's on the scale I=F^2 making for very large numbers. I typically "undo" this scaling factor using pointless -c and the "multiply" keyword. Multiply by 1/the value reported in XSCALE output.
Pointless is definitely the tool of choice - better than combat. Best wishes, Graeme On 28 March 2010 19:17, Phil Evans <[email protected]> wrote: > This shouldn't affect any of the XDS programs I think, but if you have a very > large negative intensity, SORTMTZ doesn't work. > > You can sort the file with POINTLESS (task "Find or Match Laue group" in > ccp4i) before running Scala, but it is a bit worrying that you have such a > large negative intensity somewhere. > > How did you convert data from XDS for Scala? > > Phil > > On 28 Mar 2010, at 20:13, Paul Lindblom wrote: > >> Hi everybody, >> >> I just collected a data set at our home source. Processing with XDS worked >> pretty well, but now I have some problems with scaling (scala, xscale). >> Following error occurs: >> >> Data from file 1 is more negative than -999999.0 >> Minimum value in column 6 is -0.3981E+07 >> You must either scale down the data or change VRSET_MAGIC >> SORTMTZ: *** ERROR: Program Terminating >> >> Can anybody explain what the problem is? I'm relatively new in >> crystallography. >> >> Thank you very much, >> >> P. >
