Thank you very much . That was really helpful. I will keep this email for future reference
Regards --- On Mon, 4/18/11, Duncan Murdoch <murdoch.dun...@gmail.com> wrote: > From: Duncan Murdoch <murdoch.dun...@gmail.com> > Subject: Re: [R] Help me create a hyper-structure > To: "Alaios" <ala...@yahoo.com> > Cc: r-h...@stat.math.ethz.ch, "Ben Bolker" <bbol...@gmail.com> > Date: Monday, April 18, 2011, 2:31 PM > On 18/04/2011 4:45 AM, Alaios wrote: > > It seems you were right. > > Now I can easily access my struct and substruct like > this > > > > # all.str[[1]]] Gives access to the first struct of > per.sr.struct which containts 101 times the > xorder,yorder,estimation.sr > > # all.str[[1]][[2]] Gives access to the second > substruct of all.str[[1]] > > # all.str[[1]][[2]][[3]] Gives access to the matrix. > > Something that may not be obvious is that > > all.str[[1]][[2]][[3]] > > > can also be written as > > all.str[[c(1,2,3)]] > > > This is useful when the structure is an irregular shape, > because the vector c(1,2,3) could be stored in a variable, > and on the next call it could have a different length. > > Be careful though: all.str[c(1,2,3)] (with single > brackets) means something quite different: it means > > list(all.str[[1]], all.str[[2]], all.str[[3]]) > > i.e. a subset of the top level indices. > > Duncan Murdoch > > > > Now I would like to ask you if in R cran I can make > struct assignments like this > > > > > > all.str[[i]]<-TempApproxstruct > > > > > > where all.str[[i]] is a list that contains 100 > times the > > $ :List of 3 > > ..$ xorder > : int 0 > > ..$ yoder : > int 0 > > ..$ estimation.sr: logi [1:256, 1:256] NA > NA NA NA NA NA ... > > $ :List of 3 > > ..$ xorder > : int 0 > > ..$ yoder : > int 0 > > ..$ estimation.sr: logi [1:256, 1:256] NA > NA NA NA NA NA ... > > .... and so on > > > > where str(temp.per.sr.struct) is a list that contains > 100 times the > > $ :List of 3 > > ..$ xorder > : int 0 > > ..$ yoder : > int 0 > > ..$ estimation.sr: logi [1:256, 1:256] NA > NA NA NA NA NA ... > > $ :List of 3 > > ..$ xorder > : int 0 > > ..$ yoder : > int 0 > > ..$ estimation.sr: logi [1:256, 1:256] NA > NA NA NA NA NA ... > > [list output truncated] > > ...and so on. > > > > Will R understand this kind of assignments or not? > > > > I would like to thank you in advance for your help > > Best Regards > > Alex > > > > > > > > > > > > > > > > > > > > --- On Sat, 4/16/11, Ben Bolker<bbol...@gmail.com> > wrote: > > > > > From: Ben Bolker<bbol...@gmail.com> > > > Subject: Re: [R] Help me create a > hyper-structure > > > To: r-h...@stat.math.ethz.ch > > > Date: Saturday, April 16, 2011, 3:39 PM > > > Alaios<alaios<at> > > > yahoo.com> writes: > > > > > > > > > > > Dear all > > > > I would like to have in R a big > struct containing a > > > smaller struct. > > > > > > > > 1) I would like to have a small > struct with the > > > following three fields > > > > xorder (an integer ranging from > 0 to 20) > > > > yorder (an integer ranging from > 0 to 20) > > > > estimated (a 256*256 matrix) > > > > > > > > 2) I would like to have 10 > elements of the struct > > > above > > > > for that I wrote the following: > > > > > > > Estimationstruct<- function ( xorder, > yorder, > > > estimated) { > > > list (xorder= xorder, > > > yorder=yorder,estimated=estimated) > > > } > > > > > > per.sr.struct<- replicate(10, > > > > > > > Estimationstruct(0L,0L,matrix(nrow=256,ncol=256)), > > > simplify=FALSE) > > > > > > > That one worked. > > > > per.sr.struct contains 10 > elements and each one of > > > that contains 1). > > > > > > all.sr.struct > > > > <- replicate(20,per.sr.struct,simplify=FALSE) > > > > > > > The idea is to have 20 > all.sr.stuct and each element > > > > to contain one per.sr.struct. > > > > > > I think you just missed > simplify=FALSE in the last > > > step ... > > > > > > > ______________________________________________ > > > R-help@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. > > > > > > > ______________________________________________ > > R-help@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. > > ______________________________________________ R-help@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.