On 31 March 2014 at 10:51, Petre Caraiani wrote:
| Am(ii,jj) = exp((jj+1)/(T-1)) ;
[...]
| and use fun(a,b,A,T), I get a matrix of 1s. Is there something wrong with the
| division in this Cpp code?
|
| I get the same thing when I write: Am(ii,jj) = exp((jj+1)/(T-1)*log(a[ii])) ;
| bu
Hello everybody,
Thanks for your suggestions. I used the cppFunction as follows:
#include
using namespace Rcpp;
// [[Rcpp::export]]
NumericMatrix fun (NumericVector a, NumericVector b, NumericMatrix Am ,
int T ){
int nrow = Am.nrow();
int ncol = Am.ncol();
for (int ii = 0; ii <= nrow-1; ii++)
I'd recommend:
a) using cppFunction instead of the older cxxfunction
b) creating an example that anyone can copy and paste out of their
email client and into R.
You are more likely to get helpful responses if you reduce the burden
on the potential helpers as much as possible
Hadley
On Fri, Mar
On 28 March 2014 at 13:51, Petre Caraiani wrote:
| Thank you for your quick reply!
| I corrected the issue mentioned by you, but I get the same error.
| It must be a beginner's issue.
|
| The data is quite big, but this kind of output could be produced with any
| random data, I guess.
|
| Namely
Thank you for your quick reply!
I corrected the issue mentioned by you, but I get the same error.
It must be a beginner's issue.
The data is quite big, but this kind of output could be produced with any
random data, I guess.
Namely, using the Rcpp, I get Am as:
[,1] [,2] [,3] [,4] [,5] [,6
Hi Petre,
> The following code works well in R:
> attach(dataqtr)
Not for me, because my vanilla copy of R doesn't know about dataqtr. It's
helpful to provide reproducible examples.
> However I am not able to reproduce it using the following Rccp code:
>
> a<- dataqtr[,LTG]
> b<- dataqtr[,mean
On 28 March 2014 at 10:30, Petre Caraiani wrote:
| Hello,
| The following code works well in R:
| attach(dataqtr)
|
| dataqtr <- data.table(dataqtr)
| setkeyv(dataqtr,c("gvkey","qtr"))
|
| vec_growth <- data.frame(0,0,0,0,0,0,0,0,0,0,0,0,0)
| vec_eps <- data.frame(0,0,0,0,0,0,0,0,0,0,0,0,0)
|
