[R] Alternative to list()

[Ko-Kang@xtra.co.nz]

Hi,

Suppose I have a dataset with 10 columns, let's call it "foo".

Now if I want to extract out only column 2 ~ 8, then I know I can use either:
     foo[ ,2:8]
or
     fooNew <- list( foo[ ,2:8] )

(Is there any other alternative, just out of curiosity?)

But, if I only want, say, column 1, 4 and 7, I tried:
     fooNew <- list( x = foo[ ,1], y = foo[ ,4], z = foo[ , 7]  )
then when I type 
     fooNew
I got a list of:
  $x
   ....
   ....
  $y
   ....
   ....
  $z
   ....
   ....

However what I really want is for them to be in vector/column form.  How would I do this?

Thanks in advance!


Kevin
  
-------------------------------------------------
Ko-Kang Kevin Wang
Statistical Analysis Division Leader
Software Developers' Klub
University of Auckland
New Zealand
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