the group of atoms that you are calculating the Gyration Tensor for.
=1-10 The CENTER action with label x1 calculates the following quantities:
Quantity
Description
x1.x
Glossary of keywords and components
Compulsory keywords
STRIDE
( default=1 ) the frequency with which the derivatives should be output
FILE
the name of the file on which to output the derivatives
FMT
( default=%15.10f ) the format with which the derivatives should be output
Options
ARG
the input for this action is the scalar output from one or more other actions. The particular scalars that you will use are referenced using the label of the action. If the label appears on its own then it is assumed that the Action calculates a single scalar value. The value of this scalar is thus used as the input to this new action. If * or *.* appears the scalars calculated by all the proceeding actions in the input file are taken. Some actions have multi-component outputs and each component of the output has a specific label. For example a DISTANCE action labelled dist may have three components x, y and z. To take just the x component you should use dist.x, if you wish to take all three components then use dist.*.More information on the referencing of Actions can be found in the section of the manual on the PLUMED Getting Started. Scalar values can also be referenced using POSIX regular expressions as detailed in the section on Regular Expressions. To use this feature you you must compile PLUMED with the appropriate flag.. You can use multiple instances of this keyword i.e. ARG1, ARG2, ARG3...
RESTART
allows per-action setting of restart (YES/NO/AUTO)