This is exactly what I mean.

I need to find integrate(dnorm(mean=8,sd=1)*log(dnorm(mean=8,sd=1)), -Inf,
Inf)

Which doesn't work like that, because it says:
Error in dnorm(mean = 8, sd = 1) : element 1 is empty;
   the part of the args list of '.Internal' being evaluated was:
   (x, mean, sd, log)

So how can I define x?
THanks a lot


>  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...
>

	[[alternative HTML version deleted]]

