[R] Unlisting while preserving object types?
Jason.Turner at chh.co.nz
Wed Oct 10 00:42:06 CEST 2001
The example I gave is a toy one, however, and I neglected to mention that I
automated because the number of members (in the example, a and b) isn't
advance, and could typically be as high as 30. I got tired of typing it all
out each time.
Sorry I forgot the most crucial details - I keep forgetting that the whole
working on this with me. ;-)
> Hi Jason,
> How about this:
> On Wed, 10 Oct 2001, Turner, Jason wrote:
> > Hi
> > A toy example is probably the least ambiguous way of explaining what I'm
> > trying to do.
> > > library(ts)
> > > zz<-list(a=rnorm(100),b=rt(100,3))
> > > zz.spec<-lapply(zz,spectrum,plot=F)
> > > summary(zz.spec)
> > Length Class Mode
> > a 15 spec list
> > b 15 spec list
> > I'm looking for an elegant way to fetch components of the sub-lists a
> and b
> > of zz.spec;
> > e.g. to make a matrix with columns a$spec and b$spec.
> > ec))
> > is about the best I've come up with. Is there a more direct way? This
> > particularly
> > important with nested sub-lists - lists of lists of lists. Is the best
> > approach is to
> > have the good sense to avoid such structures in the first place?
> > Cheers
> > Jason
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