[R] empty array

From: Christophe Genolini <cgenolin_at_u-paris10.fr>
Date: Sat, 15 Mar 2008 16:33:32 +0100

Hi the list

Is it possible to create an empty matrix ? I do not mean an matrix with a single value that is NA (which is not empty) but a real empty one, with length=0.

I do not understand why we have length(numeric()), length(factor()) and length(character()) to zero, and length(array()) to one... Any rason for that ?



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