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Is there a similar data structure to Splus' dataframe?


I would like to give columns of matrices names which I can use to
select these columns.

In Splus there is a fine syntax for that: matrix[,"name"] selects a
column whithout having to know its position in the matrix (2nd or 3rd
column for example).

Is there a predefined data structure and commands  or a package to do
that whithout the need to program it for myself with the Select[]
statement?

Best greetings,

Claudius

Please email directly to 
        schnoerr at mailzone.com
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