Envoyer l'article par mail
De la part de :  :
(entrez votre nom)

Destinataire  :
(entrez l'email du destinataire)

afficher une version imprimable de cet article  Imprimer l'article
générer une version PDF de cet article Article au format PDF

(from Latin contingere "to touch")

Two geographical units are contiguous if they have a common border. A contiguity matrix is a square table whose cells indicate (generally by means of one or zero) whether the geographical units mentioned in row and in column are contiguous or not. A contiguity constraint may be added to a program of automatic classification in order to produce a regionalisation.

Denise Pumain