[R] Recursive Indexing Failed

[Alaios]

So the only thing that might work is a for..loop to collect all these together?

Best REgards
Alex

--- On Mon, 5/9/11, Patrick Breheny <patrick.breheny at uky.edu> wrote:

> From: Patrick Breheny <patrick.breheny at uky.edu>
> Subject: Re: [R] Recursive Indexing Failed
> To: "Alaios" <alaios at yahoo.com>
> Cc: "R-help at r-project.org" <R-help at r-project.org>
> Date: Monday, May 9, 2011, 2:18 PM
> On 05/09/2011 08:58 AM, Alaios
> wrote:
> > Dear all,
> > I would like to ask your help concerning an error
> message I get.
> >
> > I have the following struct
> >
> > str(CRagentInTime[[1]])
> > List of 2
> >   $ timelag: int 0
> >   $ CRagent:List of 50
> >    ..$ :List of 3
> >    .. ..$ CRmap: num [1:256, 1:256] NA NA NA
> NA NA NA NA NA NA NA ...
> >    .. ..$ xy   : num [1:2] 10
> 177
> >    .. ..$ sr   : num [1:49]
> -94.9 -92.8 -79.5 -97.6 -78.4 ...
> >
> > and I wanted to select all the sr fields for every of
> each one of the 50 CRagent Lists I have.
> >
> > So I tried something like
> >
> > str(CRagentInTime[[1]][[2]][[1:10]]$sr) and I get a
> message that
> > Error in CRagentInTime[[1]][[2]][[1:10]] :
> >    recursive indexing failed at level 3
> 
> Selecting multiple elements of a list using an expression
> like [[1:10]] 
> does not work.  For example:
> 
> x <- list("a","b")
> x[[1:2]]
> 
> produces
> 
> Error in x[[1:2]] : subscript out of bounds
> 
> In general, the expression x[[1:2]] is not meaningful, as
> the elements 
> of the list may be of different type, with no way to
> concatenate them.
> 
> >
> > strange to me is that this one works
> >
> > str(CRagentInTime[[1]][[2]][[1]]$sr)
> >   num [1:49] -106 -92.9 -101.3 -81.9
> -96.7 ...
> >
> >
> > I would like to thank you in advance for your help
> > Best Regards
> > Alex
> >
> _______________________
> Patrick Breheny
> Assistant Professor
> Department of Biostatistics
> Department of Statistics
> University of Kentucky
>