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Calculation of Different Values
values are output separately as single numbers for each
classification
and separately in intensity shells for each group
of spectra. The overall value
is stored in the variable $RNMR.
The following example shows a part of the output file, i.e., the calculated calibration factor and the value. The intensities are calculated from the coordinates by the calibration statement, and the optimal calibration factor is printed for each classification separately. The value is printed first for each classification and then for each group broken down in intensity shells.
RELAx> calibrate CALIbrate> quality 0.33 automatic off reference all group class CALIbrate> end RELAX: intensities updated for calibration class N(reference) N(all) calibration --------------------------------------------- D300 0 23 .5220E+00 --------------------------------------------- RELAx> RELAx> print threshold -0.1 end {List all deviations and calculate R.} Class D300: R-factor: .6594E-01 R.m.s. difference: .8038E-01 RELAX: overall R-factor statistics ------------------------------------------------------ min. int. max. int. N R-factor r.m.s. diff ------------------------------------------------------ .2550E+01 .5100E+01 1 .4804E-01 .6302E-01 .1275E+01 .2550E+01 4 .5346E-01 .8720E-01 .6375E+00 .1275E+01 4 .4047E-01 .4735E-01 .3187E+00 .6375E+00 9 .6331E-01 .7320E-01 .1594E+00 .3187E+00 5 .1292E+00 .1204E+00 .7969E-01 .1594E+00 4 .5022E-01 .5105E-01 ------------------------------------------------------ .0000E+00 .5100E+01 27 .6594E-01 .8038E-01 ------------------------------------------------------A local value can be calculated using the select option in the print statement. The following loop calculates the value for each residue in the sequence:
relaxation set echo off message off end for $id in id (name ca) loop rfac print selection=(byres(id $id)) threshold 9999 end end loop rfac set echo on message on end end
Different types of local values can be calculated using the atom selection routine. For example, the value for the region around each residue can be calculated with the around option of the atom selection command (see Section 2.15).
Xplor-NIH 2024-09-13