Dimensions of a List

Thanks a lot for your reply...Exactly...I need the same...But can I store these numbers and hence can access further? In other words how do I extract the numbers/dimensions from this class?

Shubha Karanth | Amba Research
Ph +91 80 3980 8031 | Mob +91 94 4886 4510 
Bangalore * Colombo * London * New York * San Jos? * Singapore * www.ambaresearch.com

-----Original Message-----
From: jim holtman [mailto:jholtman at gmail.com] 
Sent: Tuesday, March 25, 2008 9:21 PM
To: Shubha Vishwanath Karanth
Cc: r-help at stat.math.ethz.ch
Subject: Re: [R] Dimensions of a List

Is this what you want?

l=list(list(c(1,2),c(4,5),c(6,7)),list(c(11,22,33),c(44,55,66)))
str(l)

List of 2
 $ :List of 3
  ..$ : num [1:2] 1 2
  ..$ : num [1:2] 4 5
  ..$ : num [1:2] 6 7
 $ :List of 2
  ..$ : num [1:3] 11 22 33
  ..$ : num [1:3] 44 55 66

Hi R,



I have a list,



l=list(list(c(1,2),c(4,5),c(6,7)),list(c(11,22,33),c(44,55,66)))

l

[[1]]

[[1]][[1]]

[1] 1 2



[[1]][[2]]

[1] 4 5



[[1]][[3]]

[1] 6 7





[[2]]

[[2]][[1]]

[1] 11 22 33



[[2]][[2]]

[1] 44 55 66





How do I know the dimensions of this list?... In other words, how many
sub-lists, sub-sub-lists etc...are there in l? How do I know this?



Thanks in advance

Shubha

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What is the problem you are trying to solve?
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