To add to Erik's answer:

You can use a three dimensional array
if all of your data for one cell is the
same type -- numeric presumably.

If the data were different types (numeric
and character, say), you could have a
matrix of mode list to do that.  However,
that's unlikely to be worth the hassle.

'S Poetry' (found on www.burns-stat.com)
has a chapter on arrays that might be of
interest if you are using 3D arrays.  I
think all of that chapter should apply to
R as well.

On 08/09/2010 16:27, Erik Iverson wrote:
Hello,

from ?array

An array in R can have one, two or more dimensions. It is simply
a vector which is stored with additional attributes giving the
dimensions (attribute ‘"dim"’) and optionally names for those
dimensions (attribute ‘"dimnames"’).

A two-dimensional array is the same thing as a ‘matrix’.


So, to answer your question, "yes".

Alaios wrote:
Hello everyone,

Could you please help me find out if R supports matrixes inside matrixes?
This is what I would like to do

I have an area map of humidity per km. I would like at every cell to
keep also information about the height of this area, the current
temperature etc.

Is something like that supported?

I would like to thank you in advance for your help

Best Regards
Alex



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