Re: [R] evaluate sum of sum

2012-08-04 Thread hafida
Hi can any body please help me to programme this formula: a[j]= E[j]-sum from l=i to i-1 (exp{(B0 B1*row matrix*) (z[l]*column matrix*) } x[l]) / sum from l=i to n it s complicate for me ; hope you can help me thank you a lot -- View this message in context: http://r.789695.n4.nabble.com/e

Re: [R] evaluate sum of sum

2009-07-15 Thread Rolf Turner
On 16/07/2009, at 2:30 PM, Roslina Zakaria wrote: Hi R-users, Could anybody show me how to write a code to evaluate sum(z[i] + sum (k[j]*(z[i])^(k[j])), i=1 to 4, j=0 to infinity) ? No. No-one can. It is conceptually impossible. (a) Computers cannot do infinite sums; they can only do fin

[R] evaluate sum of sum

2009-07-15 Thread Roslina Zakaria
Hi R-users, Could anybody show me how to write a code to evaluate sum(z[i] + sum(k[j]*(z[i])^(k[j])), i=1 to 4, j=0 to infinity) ? Thank you so much for any help given. [[alternative HTML version deleted]] __ R-help@r-project.org mail