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: onePsfMatrix.m
    path of file: ./repos/IRtools/Extra/prblur_tools/@psfMatrix/private
    
    the code of the file until where you have to start completion: function psfMatData = onePsfMatrix( PSF, center )
%
%       psfMatData = onePsfMatrix( PSF, center );
%
%  Construct matrix data for a single PSF.
%
%  Input:
%         PSF  -  array containing the PSF

    
function psfMatData = onePsfMatrix( PSF, center )
%
%       psfMatData = onePsfMatrix( PSF, center );
%
%  Construct matrix data for a single PSF.
%
%  Input:
%         PSF  -  array containing the PSF
%      center  -  array containing indices of center of the PSF.
%
%  Output:
%    psfMatData -  array containing the (complex) eigenvalues of the extend