function data = load_votfraud(do_preprocessing, do_zscore)
% LOAD_VOTFRAUD - Loads the votfraud dataset and applys some 
% preprocessing/dimensionality reduction if desired  
% 
% Written by:
% -- 
% John L. Weatherwax                2005-08-14
% 
% email: wax@alum.mit.edu
% 
% Please send comments and especially bug reports to the
% above email address.
% 
%-----

addpath( '../../Code/eda_data' );

load votfraud; 

[absentee_s,inds] = sort( absentee ); 
machine_s = machine(inds); 

data = [ absentee_s, machine_s ];
% n=number of samples=22;
% p=number of features=2;
[n,p] = size(data);       

% sort the dataset so that the first column increases as we go down it: 

% apply some preprocessing to our data ...
%  
if( do_preprocessing )
  f_mu = mean( data ); 
  f_sd = std( data ); 

  % compute the z-score of this data: 
  if( do_zscore )
    data_t = ( data - repmat( f_mu, [n,1] ) ) ./ repmat( f_sd, [n,1] ); 
    data = data_t; 
  end  
end