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: loadDatabaseFiles.m
    path of file: ./repos/Image-Harmonization-Dataset-iHarmony4/Lalonde and Efros/utils/mycode/database
    
    the code of the file until where you have to start completion: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% function db = loadDatabaseFast(databasePath, files, directories) 
%   Loads a database by reading several xml files. 
% 
% Input parameters:
%   - databasePath: path to the database
%   - subDirectories: cell array of subdirectories to process
%
% Output parameters:
%
% Warning:
%   Assumes that the databasePath follows pretty much the same structure as the labelme database.
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function db = loadDatabaseFiles(databasePath, files, directories) 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Copyright 2006-2010 Jean-Francois Lalonde
% Carnegie Mellon University
% Do not distribute
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

N = length(files);

% Pre-initialize the database
db = repmat(struct
    
function db = loadDatabaseFast(databasePath, files, directories) 
%   Loads a database by reading several xml files. 
% 
% Input parameters:
%   - databasePath: path to the database
%   - subDirectories: cell array of subdirectories to process
%
% Output parameters:
%
% Warning:
%   Assumes that the databasePath follows pretty much the same structure as the labelme database.
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function db = loadDatabaseFiles(databasePath, files, directories) 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Copyright 2006-2010 Jean-Francois Lalonde
% Carnegie Mellon University
% Do not distribute
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

N = length(files);

% Pre-initialize the database
db = repmat(struct('document', []), 1, N);

ind = floor((0.01:0.01:1) .* N);
p=progressbar();
p = setMessage(p, 'Loading documents...');
for j=1:N
    if intersect(j, ind)
        p = setStatus(p, j/N);
        display(p);
    end