[R] vectoring a simple for

Cezar Augusto de Freitas Anselmo cafa at ime.unicamp.br
Mon Nov 25 22:05:28 CET 2002


Hi all. A simple question.

Supose that I have a vector beta <- c(1,2,3)
I need a vector which indice i be beta[i]*sum(beta[-i])
For example,
result <- rep(0,3)
for(i in 1:3) result[i] <- beta[i]*sum(beta[-i])
result
[1] 5 8 9
How I do it with no for?
Thanks in advance.

========================================
Cezar Freitas (ICQ 109128967)
IMECC - UNICAMP
Campinas, SP - Brasil


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