%
% Written by:
% -- 
% John L. Weatherwax                2008-02-20
% 
% email: wax@alum.mit.edu
% 
% Please send comments and especially bug reports to the
% above email address.
% 
%-----

n = 100; 
x = randn(1,n)*sqrt(2) + 10;  % <- a normal distribution 

xs    = sort(x); 
q0_5  = median(xs); 
xlt   = xs( find(xs<=q0_5) );
q0_25 = median( xlt ); 
xgt   = xs( find(xs>=q0_5) ); 
q0_75 = median( xgt ); 
fprintf('For %10d points the quantiles are approximated with (%10.5f,%10.5f,%10.5f)\n',n,q0_25,q0_5,q0_75);