---
name: "csg_fluctuations"
section: "1"
platform: "linux"
package: "votca"
version: "2024.2-4"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/csg_fluctuations"
---

# csg\_fluctuations(1)

Part of the VOTCA package

## NAME

**csg\_fluctuations** - Part of the VOTCA package

## SYNOPSIS

**csg\_fluctuations** \[OPTIONS\]

**csg\_fluctuations** \[--help\]

## DESCRIPTION

calculate density fluctuations in subvolumes of the simulation box.Subolumes can be either cubic slabs in dimensions (x\|y\|z) or sphericalslabs with respect to either the center of box or a reference molecule

## OPTIONS

Allowed options:

  \-h \[ --help \]                        display this help and exit\
   \--verbose                            be loud and noisy\
   \--verbose1                           be very loud and noisy\
   \-v \[ --verbose2 \]                    be extremly loud and noisy\
   \--top arg                            atomistic topology file

Fluctuation options:

  \--filter arg (=\*)                  filter molecule names\
   \--rmax arg                         maximal distance to be considered\
   \--rmin arg (=0)                    minimal distance to be considered\
   \--refmol arg                       Reference molecule\
   \--nbin arg (=100)                  Number of bins\
   \--geometry arg                     (sphere\|x\|y\|z) Take radial or x, y, z \
                                      slabs from rmin to rmax\
   \--outfile arg (=fluctuations.dat)  Output file

Mapping options:

  \--cg arg                             coarse graining mapping and bond \
                                      definitions (xml-file)\
   \--map-ignore arg                     list of molecules to ignore separated by\
                                      ;\
   \--no-map                             disable mapping and act on original \
                                      trajectory

Trajectory options:

  \--trj arg                            atomistic trajectory file\
   \--begin arg (=0)                     skip frames before this time (only works\
                                      for Gromacs files)\
   \--first-frame arg (=0)               start with this frame\
   \--nframes arg                        process the given number of frames

## AUTHORS

Written and maintained by the VOTCA Development Team \<devs@votca.org\>

## COPYRIGHT

Copyright 2009-2024 The VOTCA Development Team (http://www.votca.org)

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this  file except in compliance with the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

Unless  required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY  KIND, either  express  or  implied.   See  the  License  for  the  specific  language  governing permissions and limitations under the License.