Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2000
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2000

[Date Index] [Thread Index] [Author Index]

Search the Archive

Is there a similar data structure to Splus' dataframe?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg23071] Is there a similar data structure to Splus' dataframe?
  • From: Claudius Schnorr <schnoerr at mailzone.com>
  • Date: Sat, 15 Apr 2000 03:00:28 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

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
-- 
----------------------------------------------------------------
Dr.-Ing. Claudius Schn"orr        Tel: ++49-(0)211-5591570
Sigmaringenstr. 2
40547 D"usseldorf / Germany       e-mail: schnoerr at mailzone.com
----------------------------------------------------------------


  • Prev by Date: RE: Product of the first 1000th Prime
  • Next by Date: Shadowing in loaded packages
  • Previous by thread: Re: Directory Function
  • Next by thread: Re: Is there a similar data structure to Splus' dataframe?