You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: DubnaPoleFigure.m
    path of file: ./repos/mtex/tools/dubna_tools
    
    the code of the file until where you have to start completion: function pf = DubnaPoleFigure(fname,h_id,data,CS,SS,varargin)
% construct pole figure using Dubna struct file
%
%% Input
%  fname  - crystal struct file
%  h_id   - lines in this struct file corresponding to one peak
%  data   - intensities of this peak with respect to the Dubna Grid
%  CS, SS - crystal / specimen symmetry
%
%% Output

    
function pf = DubnaPoleFigure(fname,h_id,data,CS,SS,varargin)
% construct pole figure using Dubna struct file
%
%% Input
%  fname  - crystal struct file
%  h_id   - lines in this struct file corresponding to one peak
%  data   - intensities of this peak with respect to the Dubna Grid
%  CS, SS - crystal / specimen symmetry
%
%% Output
% pf     - single PoleFigure
		
crystal = load(fname);

if any(strcmp(Laue(CS),{'-3','-3m','6/m','6/mmm'}))
  % access superpostion coefficient
  c = crystal(h_id,12);
  % access crystal directions
  h = Miller(crystal(h_id,2),crystal(h_id,3),crystal(h_id,4),crystal(h_id,5),CS);
else
  c = crystal(h_id,11);
  h = Miller(crystal(h_id,2),crystal(h_id,3),crystal(h_id,4),CS);
end