Hi Laila,

Here is a suggestion:

res <-  integrate(dnorm, -1.96, 1.96)
res
# 0.9500042 with absolute error < 1.0e-11

res[[1]]
# [1] 0.9500042

res$value
# [1] 0.9500042


HTH,
Jorge

On Sun, Nov 1, 2009 at 3:02 PM, Laila Alkhalfan <> wrote:

> Hi
>  Can we get the result of an intigration without the absolute error?
> for example
> f1<-function(x1){(1/gamma(alpha))*x1^(alpha-1)*exp(-x1)*log(x1)}
> I1<-integrate(f1, 0, (max(cc)-tau1+(theta2/theta1)*tau1)/theta2)
> I1
> 0.08007414 with absolute error < 7.2e-05
>  I need the answer  0.08007414 withou the other part(with absolute error
> <7.2e-05)
> how can we do that?
> thank you and take care
> Laila
>
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