Looking at your pseudo code it appears that you know how many columns
are required in your matrix before run time. This situation lends
itself well to generating the columns of your matrix as vectors as these
can be manipulated with STL. Combining these vectors to a dataframe for
return is very
On Mon, Sep 5, 2011 at 1:11 PM, Noah Silverman wrote:
> Nice,
>
> But, how can I copy to the Rcpp::NumericMatrix column?
>
> This fails:
> std::vector data1;
> // do stuff to populate data1
>
> Rcpp::NumericMatrix output(data1.size(), 6);
> std::copy(data1.begin(), data1.end(), output(_,0) );
std
Nice,
But, how can I copy to the Rcpp::NumericMatrix column?
This fails:
std::vector data1;
// do stuff to populate data1
Rcpp::NumericMatrix output(data1.size(), 6);
std::copy(data1.begin(), data1.end(), output(_,0) );
I'm probably referencing the matrix column incorrectly, but can't find any
Good idea. Thank You!!
--
Noah Silverman
UCLA Department of Statistics
8117 Math Sciences Building #8208
Los Angeles, CA 90095
On Sep 5, 2011, at 9:46 AM, Douglas Bates wrote:
> On Mon, Sep 5, 2011 at 11:31 AM, Noah Silverman
> wrote:
>> Hi,
>> Using Rcpp through inline.
>> I want to return a
On Mon, Sep 5, 2011 at 11:31 AM, Noah Silverman wrote:
> Hi,
> Using Rcpp through inline.
> I want to return a matrix, but I don't know the size beforehand. (My code
> loops through a large data set accumulating certain statistics.)
> With a NumericVector, I can use push_back() to just add values
Hi,
Using Rcpp through inline.
I want to return a matrix, but I don't know the size beforehand. (My code
loops through a large data set accumulating certain statistics.)
With a NumericVector, I can use push_back() to just add values to the end of
the vector as they occur. Is there similar fu
