[Rcpp-devel] Negative indexing in Rcpp

[Dirk Eddelbuettel]

Hi Tiago,

On 1 April 2013 at 17:41, Tiago Fragoso wrote:
| Say I have a 10x10 matrix A. If I want to access everything remaining after I
| delete columns 1, 5 and 10, all I have to do is 
| 
| A[,-c(1,5,10)]
| 
| Is there a convenient way to do it in Rcpp (or using Armadillo objects)?

Armadillo allows you to subset via vector expressions.

Dirk

-- 
Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com