[R] integers, reals
Prof Brian Ripley
ripley at stats.ox.ac.uk
Fri Dec 1 12:18:13 CET 2000
> Date: Fri, 1 Dec 2000 11:47:38 +0100
> From: Martin Gotz <xgotz at informatics.muni.cz>
> how much bytes is one integer and real number in R?
Strictly, it varies by platform, but I think it is 4 and 8 on all
known platforms, even 64-bit ones. Integers are required to be
at least 4 bytes long.
R 1.2.0 will have a function object.size() to give a rough idea of the size
of objects in memory. (Rough, because attributing memory blocks to
objects is not exact.) For example, on a 64-bit machine
> x <- integer(1000)
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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