That's it. thanks very much, I save hours if work qith your reply ----- Mario Garrido Escudero PhD student Dpto. de Biología Animal, Ecología, Parasitología, Edafología y Qca. Agrícola Universidad de Salamanca -- View this message in context: http://r.789695.n4.nabble.com/Applying-a-function-to-a-subset-tp3558567p3559471.html Sent from the R help mailing list archive at Nabble.com.
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