ncsrelation

[Liang Xue]

Dear X-plor users,

I am a new X-plor learner . Now I have some question in molecule refinement .
The crystal structure that I am refining is in P1 space group and has 4 
NCS-related mates. The xncs-relations are as following:

   xncsrel
     matrix=(-0.717797    0.215705    0.661997)
            ( 0.226691   -0.826589    0.515134)
            ( 0.658316    0.519830    0.544424)
 
     translation=(73.3939  162.5362  -85.7785)
   end
   xncsrel
     matrix=(-0.647184    0.224813    0.728431)
            ( 0.224353   -0.857042    0.463836)
            ( 0.728573    0.463613    0.504227)
     translation=(8.3049  114.9881 -107.9087)
   end
   xncsrel
     matrix=( 0.995333    0.053170    0.080532)
            (-0.050272    0.998028   -0.037591)
            (-0.082372    0.033367    0.996043)
     translation=(-64.8513  -47.8328  -22.2725)

I am wondering how to calculate the ncsrelation of them and what is 
ncsrelation's function. The xplor program I am using is X-PLOR 3.1 and 
X-PLOR 3.8. Any advice  is appreciated.

Thanks a lot .


  Xuel