Message-ID: <3B4302DD.1C8DED50@inrialpes.fr>
Date: 2001-07-04T11:49:50Z
From: Olivier MARTIN
Subject: a little probleme
Hi all,
i would like to find the best way to resolve the following problem.
Suppoose i have a vector x of length N with k different elements.
length(x)=N
u<-unique(x)
length(u)=k
I would like to get a matrix M with k rows and N columns such that:
in each line i (i=1,...,k), which(x%in%u[i]) is equal to 1 and 0 else.
Thanks for your help.
Olivier
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Olivier MARTIN phone: (33) 04 76 61 53 55
Projet IS2 06 08 67 93 42
INRIA Rhone-Alpes fax : (33) 04 76 61 54 77
655, Av. de l'Europe
Montbonnot e-mail:olivier.martin at inrialpes.fr
38334 Saint Ismier cedex
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