R help - Feb 2009 - density plot & probabilities

hello !
I have question concerning *kernel density plots*:

how to plot <density vs. the probability> of a vector, when that vector 
is very short (5-10 values)?
I tried:

 > plot(density(x))

or

 > hist(x,probability=T,border="white")
 > lines(density(x))

for small length of vectors, the ylab is not 0<ylab<1 but fro example 
from 0 to 3. thats confusing for a density... why is that?

thanks for your time.
cheers,
gregor

gregor rolshausen wrote:
> hello !
> I have question concerning *kernel density plots*:
> 
> how to plot <density vs. the probability> of a vector, when that
vector
> is very short (5-10 values)?
> I tried:
> 
>  > plot(density(x))
> 
> or
> 
>  > hist(x,probability=T,border="white")
>  > lines(density(x))
> 
> for small length of vectors, the ylab is not 0<ylab<1 but fro example
> from 0 to 3. thats confusing for a density... why is that?
Why do you think a density is smaller than one?
Consider a uniform distribution from 0 to 0.5, hope it still has a value 
of 2 between 0 and 0.5 ...

Uwe Ligges


> thanks for your time.
> cheers,
> gregor
> 
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