[R] Integral of function of dnorm

[Peter Dalgaard]

Trafim Vanishek wrote:
> Dear all,
> 
> How is it possible in R to calculate the following integral:
> Integral(-Inf, Inf)[log(dnorm(mean = 3, sd = 1))]
> 
> how can I define that the density dnorm is taken on (-Inf, Inf)
> 
> Thanks a lot!

Er, if you mean integral with respect to the x argument in dnorm, then 
the answer is -Inf because log(dnorm(x,...)) goes quadratically to -Inf 
in both directions. If you meant otherwise, please tell us what you meant...


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