Thank you ! Great answers...now it seems very easy... As usual...a the obviousness of a solution depends on how you face the problem... Thank you for help me in find the good approaches... -- View this message in context: http://r.789695.n4.nabble.com/switching-elements-of-a-vector-tp2228373p2228427.html Sent from the R help mailing list archive at Nabble.com.
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