[R] density at particular values

[David Winsemius]

On Nov 20, 2010, at 8:07 PM, Shant Ch wrote:

> Hello everyone!
>
> I want to use density function of R to compute the density at x(=0,  
> say). But it
> is giving me the 5-number summary and mean of the data and densities  
> at that
> point.
> I just want the densities at different values specified by me. Can  
> anyone let me
> know how can I find that?

Here's what you should have done (even before posting):

?density
<Read the help page to see the structure of what density() returns.>
"Value
x   the n coordinates of the points where the density is estimated.

y   the estimated density values. These will be non-negative, but can  
be zero."

Realize that the "specified by me" part is either going to be modified  
to "pick an existing estimate near my specification" or that you will  
need to approximate the value. So what is the actual problem (and the  
actual data setup) ?

-- 
David.


>
> For example
>
>
> Thanks in advance for your help.
>
>
> Shant
>
>
>
>
> 	[[alternative HTML version deleted]]
>
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David Winsemius, MD
West Hartford, CT