Re: [ccp4bb]: Truncate Resolution Error

[Ana Gonzalez <ana@SLAC.Stanford.EDU>]

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On Thu, 2 Aug 2001, Tristan Fiedler wrote:

TF >In running truncate for the purpose of analysing the output plots to
TF >detect possible twinning, the following error appears:
TF >
TF >TRUNCATE:  *** Data beyond useful resolution limit ***
TF >

I have seen that with data sets with  very incomplete high resolution
shells - for instance, when including the data  from the corners  of a
square detector. The easy way out is to cut the maximum resolution to the
'useful limit'. If you want the h.r. data, you could try tricking the
program  by setting the number of resolution shells to other than the
default. I  don't know if it would work, but it is what I would try :-)

Ana



TF >The input file (truncate) consists of the following:
TF >
TF >#!/bin/sh
TF >set -e
TF >truncate hklin scalep212121.mtz \
TF >        hklout trashtrnct_212121.mtz <<EOF
TF >title truncated data for twin test
TF >truncate yes
TF >anomalous no
TF >nresidue 720
TF >EOF
TF >
TF >The resultant output file lacks the desired plots.  It should be pointed
TF >out that a nearly identical file in SG P41212 does not show this
TF >problem.
TF >
TF >Any advice is appreciated.
TF >
TF >Thank you kindly,
TF >
TF >Tristan Fiedler
TF >
TF >
TF >
TF >--
TF >Tristan J. Fiedler
TF >Graduate Program in Biochemistry & Molecular Biology
TF >University of Miami Medical School
TF >
TF >tfiedler@newssun.med.miami.edu
TF >
TF >
TF >