zipfextR (version 1.0.2)

zipfpeVariance: Variance of the Zipf-PE distribution.

Description

Computes the variance of the Zipf-PE distribution for given values of \(\alpha\) and \(\beta\).

Usage

zipfpeVariance(alpha, beta, tolerance = 10^(-4))

Arguments

alpha

Value of the \(\alpha\) parameter (\(\alpha > 3\)).

beta

Value of the \(\beta\) parameter (\(\beta \in (-\infty, +\infty)\)).

tolerance

Tolerance used in the calculations. (default = \(10^{-4}\))

Value

A positive real value corresponding to the variance of the distribution.

Details

The variance of the distribution only exists for \(\alpha\) strictly greater than 3.

See Also

zipfpeMoments, zipfpeMean.

Examples

# NOT RUN {
zipfpeVariance(3.5, 1.3)
# }