[R] Fw: Multiple Integrals

of the expectation I want to find. On Saturday, August 29, 2015 7:24 PM, David Winsemius dwinsem...@comcast.net wrote: On Aug 29, 2015, at 11:35 AM, Shant Ch via R-help wrote: Hello Dr. Berry, I know the theoretical side but note we are not talking about expectation of sums rather

Re: [R] Multiple Integrals

Hello Dr. Berry, I know the theoretical side but note we are not talking about expectation of sums rather expectation of ABSOLUTE value of the function (X1/3+X2/3+X3/3-X4), i.e. E|X1/3+X2/3+X3/3-X4| , I don#39;t think this can be handled for log normal distribution by integrals by hand.

[R] Multiple Integrals

Hello all, For a study I want to find E|X1/3+X2/3+X3/3-X4| for variables following lognormal distribution. To get the value we need to use four integrals. This is the code which I is used   fx-function(x){     dlnorm(x,meanlog=2.185,sdlog=0.562)   } U31-integrate(function(y1) {