Dimensions of a List

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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

This e-mail may contain confidential and/or privileged i...{{dropped:13}}

______________________________________________
R-help at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem you are trying to solve?
Hi,
l=list(list(c(1,2),c(4,5),c(6,7)),list(c(11,22,33),c(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?

> 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

I hope this is what you were looking for?

Best,
Roland
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

This e-mail may contain confidential and/or privileged i...{{dropped:13}}

______________________________________________
R-help at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem you are trying to solve?
This e-mail may contain confidential and/or privileged i...{{dropped:10}}
Maybe something like this:

lis <- lapply(l, lapply, length)
names(lis) <- lapply(l, length)
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
 >

 On 3/25/08, Shubha Vishwanath Karanth <shubhak at ambaresearch.com> wrote:
 > 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
 >
 > This e-mail may contain confidential and/or privileged i...{{dropped:13}}
 >
 > ______________________________________________
 > R-help at r-project.org mailing list
 > https://stat.ethz.ch/mailman/listinfo/r-help
 > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 > and provide commented, minimal, self-contained, reproducible code.
 >

 --
 Jim Holtman
 Cincinnati, OH
 +1 513 646 9390

 What is the problem you are trying to solve?

This e-mail may contain confidential and/or privileged i...{{dropped:10}}

 ______________________________________________
 R-help at r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.

Henrique Dallazuanna
Curitiba-Paran?-Brasil
25? 25' 40" S 49? 16' 22" O