% eventalign - function called by POP_IMPORTEVENT to find the best
%              sampling rate ratio to align 2 arrays of data events.
%
% Author: Arnaud Delorme, SCCN/INC/UCSD, Dec 2003

% Copyright (C) Arnaud Delorme, CNL / Salk Institute, 9 Feb 2002, arno@salk.edu
%
% This file is part of EEGLAB, see http://www.eeglab.org
% for the documentation and details.
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function mindiff = eventalign(factor, a, b, measure)

if length(factor) == 2
    diffarray = abs(factor(1)*a-b+factor(2))';
else
    diffarray = abs(factor*a-b)';
end
allmins = min(diffarray);

if strcmpi(measure, 'mean')
    mindiff = mean(allmins);
else
    mindiff = median(allmins);
end