6CYANA: grid memory - CYANA command

Parameters: <parameters>
            selection=<string>             (default: <blank>)

This command handles the storage of allowed dihedral angle values
that have been determined by grid searches. These are stored in
grid memories that provide for each dihedral angle in the molecule
(not only in the current fragment) a fine grid with a spacing of 2
degrees to store the allowed dihedral angle values.

The standard grid memory, A, is used by the 'grid search' and 'grid
aco' commands. Additional grid memories with user-defined names are
initialized when they are first used in one of the following grid
memory expressions:

  a=.true.     initialize grid memory a; all angle values allowed
  a=.false.    initialize grid memory a; all angle values forbidden
  a=.not.b     not b
  a=b.and.c    intersection of b and c
  a=b.or.c     union of b and c
  a            list contents of grid memory a
  a=           remove grid memory a

Grid memory expressions must not contain blanks.

If the 'selection' parameter is specified, the operation will be
applied to all torsion angles that match the <string>. By default,
the operation is performed for all angles in the fragment defined by
the most recent 'grid fragment' command.

If the command is used without any parameters, the names of all
occupied grid memories are printed.
