[R] Determining the "memory" used by a dataset or vector?

[Prof Brian Ripley]

On Thu, 4 May 2006, r user wrote:

> Is there a function that reports the amount of memory
> used by a dataset and/or vector?

?object.size

> If I have a dataset with only 1 column, does it use
> more memory then the same data arranged as a vector?

Yes.  (I presume you mean a *data frame* here.)

-- 
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 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595