R help - Jan 2015 - Approximation of a function from R^2 to R

Hello,
I am a beginner and I wanted to know if there is a way to approximate a
function that has 2 input variables and one output. 



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Yes, there are several.  Which is best and which subset to suggest depends
on what you are trying to do, what your inputs look like (do you have the
function, but want a simpler approximation? or do you have
observations/datapoints?)

If you can give us more detail about what you have to work with and what
type of "approximation" you want then we can be of more help.

On Wed, Jan 14, 2015 at 10:32 AM, rala <stachel9 at gmx.de> wrote:
> Hello,
> I am a beginner and I wanted to know if there is a way to approximate a
> function that has 2 input variables and one output.
>
>
>
> --
> View this message in context:
>
http://r.789695.n4.nabble.com/Approximation-of-a-function-from-R-2-to-R-tp4701805.html
> Sent from the R help mailing list archive at Nabble.com.
>
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-- 
Gregory (Greg) L. Snow Ph.D.
538280 at gmail.com

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Thanks for the reply. I have datapoints.
What I actually want to do is to estimate a joint density function.
I used npudens() to estimate the kernel density of two vectors and got the
densities at the evaluation points. Now I want an approximation for this so
I can have an estimate for different points.



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