function [ pstars ] = getpstars( pvalue )
% (C) Demetrio Ferro demetrio.ferro@upf.edu
% Creative Commons 
% Attribution-NonCommercial-ShareAlike 4.0 
% International Public License

if pvalue <0.001
    pstars=' ***';
elseif pvalue<0.01
    pstars=' ** ';
elseif pvalue<0.05
    pstars='  * ';
else
    pstars='  - ';
end
end