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: cat_main_kamap.m
    path of file: ./repos/ExploreASL/External/SPMmodified/toolbox/cat12
    
    the code of the file until where you have to start completion: function [P,res,stime2] = cat_main_kamap(Ysrc,Ycls,Yy,tpm,job,res,vx_vol,stime2)
% ______________________________________________________________________
%
% (initial) k-means AMAP segmentation
%

    
function [P,res,stime2] = cat_main_kamap(Ysrc,Ycls,Yy,tpm,job,res,vx_vol,stime2)
% ______________________________________________________________________
%
% (initial) k-means AMAP segmentation
%
% This is an alternative pipeline in case of failed SPM brain tissue
% classification in datasets with abnormal anatomy, i.e. superlarge 
% ventricle. However, SPM is used for head tissue classification and
%  bias correction. It is (only) called from the cat_main function. 
%
%   [P,res,stime2] = cat_main_amap(Ysrc,Ycls,job,res,stime2)
%
%   Ysrc    .. cell structure of 3D probability maps of the segmentation 
%              [GM,WM,CSF,SK,HD,BG] 
%   P       .. 4D probability map of the segmentation
%   res     .. SPM segmentation structure
%   vx_vol  .. voxel_resolution
%   stime2  .. just a time stamp
% ______________________________________________________________________
%
% Robert Dahnke, Christian Gaser 
% Structural Brain Mapping Group
% University Jena 
% ______________________________________________________________________
% $Id: cat_main_kamap.m 1435 2019-03-06 11:24:38Z dahnke $ 


% ______________________________________________________________________
% Possible developments:
% (1) Update for PD/T2 weightings?
%     Yes, in future!
% (2) Add head class model? 
%     Maybe later.
% (-) More complex skull-stripping? 
%     No, this is given by the input segmenation  
% ______________________________________________________________________


  % if there is a breakpoint in this file set debug=1 and do not clear temporary variables 
  dbs  = dbstatus; debug = 0; for dbsi=1:numel(dbs), if strcmp(dbs(dbsi).name,mfilename); debug = 1; break; end