R: [R] Problem with a matrix

Ambrosini Alessandro klavan at tiscalinet.it
Sun Apr 21 18:53:17 CEST 2002

Thank you very much. Everything is ok.
I make you another question (and I hope that it will be the last one).
If names of nodes are not "a", "b", "c" but "Italy", "Spain", "England" how
can I change the command

 x <- lapply(x,match,letters) to obtain the usual matrix?
If I write the command in this way, the output is NA NA NA ... and so maybe
I have to change "letters". What have I to write?
Thank you and excuse me for the disturb.

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