On Nov 30, 2009, at 9:30 AM, Trafim wrote:

Unfortunately, it doesn't work.
Can you, please, help me with it?

In order to support the notion of a 2 dimensional distribution, you need a function that depends on ... 2 dimensions. All you have at the moment are two different one-dimensional functions.

What is you goal in this effort?

--
David.

Thanks a lot.

On Mon, Nov 30, 2009 at 2:53 PM, Trafim <rdapam...@gmail.com> wrote:

Seems that I found it - kde2d


On Mon, Nov 30, 2009 at 2:36 PM, Trafim <rdapam...@gmail.com> wrote:

Hi everybody,

I am looking for the possibility in R to estimate joint density, just for
example:

x <- seq(1,40,1)
y <- 2*x+1+5*rnorm(length(x))
y1 <- x^3+.5*rnorm(length(x))

Is there a way to approximate the density function s.t. I will later be
able to calculate f(Y=y, Y1=y1)

Thanks a lot




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