[R] integrate

From: Rogério Rosa da Silva <rogeriorosas_at_gmail.com>
Date: Fri 23 Jun 2006 - 22:12:41 EST


Dear All,

My doubt about how to integrate a simple kernel density estimation goes on.

I have seen the recent posts on integrate density estimation, which seem similar to my question. However, I haven't found a solution.

I have made two simple kernel density estimation by:  

    kde.1 <-density(x, bw=sd(x), kernel="gaussian")$y     # x<- c(2,3,5,12)
    kde.2 <-density(y, bw=sd(y), kernel="gaussian")$y     # y<- c(4,2,4,11)
 

Now I would like to integrate the difference in the estimated density values, i.e.:

    diff.kde <- abs (kde.1- kde.2)

How can I integrate diff.kde over -Inf to Inf ?

Best,

Rogério



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