Hi all,
Can anyone please take a look at the following two functions.
The answer does not seem to be right.
Thank you very much!
f1 <- function(x)
{integrand <- function (x, mu){
dnorm(x, mean=mu, sd=1)*dnorm(mu, mean=2, sd=1)
}
integrate(integrand, -Inf, Inf,x)$val
}
f2 <- function(x)
{integrand <- function (x, mu){
dnorm(x, mean=mu, sd=1)*mu^2*dnorm(mu, mean=2, sd=1)
}
integrate(integrand, -Inf, Inf,x)$val
}
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