neighborlist
************
Determines neighbouring pairs for exciton transport
The following table contains the defaults input options for the calculator, The default `OPTIONAL` means this option is switched off, if no input is given. 
`REQUIRED` arguments have to be specified, otherwise an error is thrown.

.. list-table::
   :header-rows: 1
   :widths: 30 20 15 15
   :align: center

   * - Property Name
     - Default Value
     - Description
     - Valid Input
   * - segmentpairs.pair.type
     - REQUIRED
     - names of two segmenttypes to create a pair
     - 
   * - segmentpairs.pair.cutoff
     - REQUIRED
     - cutoff value if the segmentname method is used
     - 
   * - constant
     - 1.5
     - contant cutoff for all segmenttypes
     - float+
   * - exciton_cutoff
     - OPTIONAL
     - cutoff for classical exciton transition charge treatment
     - float+
.. note::
   An *xml* file containing the defaults for the `neighborlist` calculator can be created via `-p neighborlist -o FILENAME` command line options `