[Rcpp-devel] Easy way to subset a matrix

[c s]

On Wed, Sep 21, 2011 at 4:00 PM, Noah Silverman <noahsilverman at ucla.edu> wrote:
> Nice suggestion, but it may not work for what I'm trying to do.
> I'm building up a matrix of values over a time series as part of a big loop.
>  At certain iterations, I need to calculate some summary statistics on a few
> things.  In R, it is trivial to subset any part of a matrix.  Not sure to do
> that in Rcpp.

Try the running_stat_vec class:
http://arma.sourceforge.net/docs.html#running_stat_vec