hsj:
Sheather-Jones choice of smoothing parameter for density estimation
Description
This function uses the Sheather-Jones plug-in method of selecting a
smoothing parameter which is suitable for constructing a density estimate
in the one-dimensional case.
Usage
hsj(x)
Arguments
x
a vector of data.
Value
the value of the smoothing parameter located by the Sheather-Jones method.
Details
See Section 2.4.4 of the reference below.
References
Bowman, A.W. and Azzalini, A. (1997). Applied Smoothing Techniques for
Data Analysis: the Kernel Approach with S-Plus Illustrations.
Oxford University Press, Oxford.