On Thu, 8 May 2008 03:46:00 -0700 (PDT), sarikan
<serefarikan@[EMAIL PROTECTED]
> wrote:
> By theory, probability of a single value must be zero. However, you
> can give a value to standard normal density function for example, and
> get a number from R: dnorm(0,0,1,FALSE) gives 0.3989423
> This is the probability at point 0 for standard normal distribution.
The PDF is a curve of "probability density", not probability.
They are different. For instance, for some distributions,
some values will be greater than 1.0.
We also use this directly in the Likelihood function
for a sample, when we solve for Maximum Likelihood.
[snip]
--
Rich Ulrich
http://www.pitt.edu/~wpilib/index.html
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