pdflap: Probability Density Function of the Laplace Distribution
Description
This function computes the probability density of the Laplace distribution given parameters (\(\xi\) and \(\alpha\)) computed by parlap. The probability density function is
$$f(x) = (2\alpha)^{-1} \exp(Y)\mbox{,}$$
where \(Y\) is
$$Y = \left(\frac{-|x - \xi|}{\alpha}\right)\mbox{.}$$
Usage
pdflap(x, para)
Value
Probability density (\(f\)) for \(x\).
Arguments
x
A real value vector.
para
The parameters from parlap or vec2par.
Author
W.H. Asquith
References
Hosking, J.R.M., 1986, The theory of probability weighted moments: IBM Research Report RC12210, T.J. Watson Research Center, Yorktown Heights, New York.