Respected Nick Cox,
Sorry for not providing complete information, I am trying it using
Mata. Following is the code i am trying to execute.
********************************************************************************************
for (i=1; i<=rows(info); i++)
{
v_i =
panelsubmatrix(v, i, info)
m_i = panelsubmatrix(m,i,info)
n_i = panelsubmatrix(s,i,info)
n = mean(n_i)
t_i=v_i*m_i*n
}
****************** I want to sum all these t_i in one matrix say "t"
******************
********************************************************************************************
Best Regards,
Nadeem Shafique
On 8/24/07, Nick Cox <[email protected]> wrote:
> There may be subtleties here I am missing, but
> I would initialise
>
> sum <- first_matrix
>
> and then loop over the other matrices
>
> sum <- sum + next_matrix
>
> This is pseudocode.
>
> Otherwise I can't tell what's troubling you about
> this. As the details will depend on whether
> you are using Stata or Mata, your naming structure,
> what else you are doing with these matrices,
> whether the number is predictable in advance, etc.,
> none of which is indicated, I'll leave it there.
>
> Nick
> [email protected]
>
> Nadeem Shafique
>
> > I want to add several matrices (say K) of the same order, suppose the
> > matrices to be added are comming from a loop, how can i calculate the
> > following
> >
> > K
> > Sum X_i
> > i=1
> > where X_i is the ith Matix
>
> *
> * For searches and help try:
> * http://www.stata.com/support/faqs/res/findit.html
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
--
Nadeem Shafique Butt
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
