# Re: [R] Help me create a hyper-structure

From: Alaios <alaios_at_yahoo.com>
Date: Mon, 18 Apr 2011 01:45:44 -0700

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[[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 <bbolker_at_gmail.com> wrote:

> From: Ben Bolker <bbolker@gmail.com>
> Subject: Re: [R] Help me create a hyper-structure
> To: r-help_at_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_at_r-project.org
> mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help