Dear all,
 
I would like to know how can I make an MA-plot where I can add smooth curves that represent the trends characteristic to each print tip.
See the desired plot in  http://www.stat.unc.edu/faculty/marron/DataAnalyses/SiZer/SiZer_Examples.html#Eg3:MicroArray <http://www.stat.unc.edu/faculty/marron/DataAnalyses/SiZer/SiZer_Examples.html#Eg3:MicroArray> 
 
 
Kind regards,
João Fadista

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