Message-ID: <20815.48660.621101.200183@max.nulle.part>
Date: 2013-03-25T03:01:40Z
From: Dirk Eddelbuettel
Subject: [Rcpp-devel] Multidimensional List (List of Lists)
In-Reply-To: <514FB807.10306@gmail.com>
On 24 March 2013 at 23:35, Marco wrote:
| Hi, I being looking around but couldn't find a way to create a list of a
| list inside Rcpp. Is that possible?
|
| So far I tried:
|
| List ret1;
| List ret2;
| ret1["name1"] = resultsMatrix;
| ret2["name2"] = covarMatrix;
| List ret;
| ret["samples"] = ret1;
| ret["covmatrix"] = ret2;
|
|
| But no sucess.
a) You posted twice. That's close to spamming.
b) Your example is incomplete and non-reproducible. Not a way to earn brownie
points either.
De minimis example:
R> sourceCpp("/tmp/reclist.cpp")
R> reclist()
[[1]]
[[1]][[1]]
[1] 10 20
[[1]][[2]]
foo bar
20 30
[[2]]
[[2]][[1]]
[1] 10 20
[[2]][[2]]
foo bar
20 30
R>
Using code from the first unit test example I found on List, and making it
two level:
#include <Rcpp.h>
using namespace Rcpp;
// [[Rcpp::export]]
List reclist(){
List a(2);
List output(2);
output[0] = IntegerVector::create( 10, 20 ) ;
output[1] = IntegerVector::create(_["foo"] = 20,
_["bar"] = 30 ) ;
a[0] = output;
a[1] = output;
return a;
}
Dirk
--
Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com