Estimation of an extremal index using the block maxima approach suggested by (Gomes, 1993).
The function is called by
KRDetect.outliers.EV and is not intended for use by regular users of the package.
a numeric vector of observations.
a numeric value giving the length of blocks.
This function computes the estimate of extremal index suggested by (Gomes, 1993).
The function is exported for developer use only. It does not perform any checks on inputs since it is only convenience function used within
A numeric value of an extremal index estimate
Gomes M (1993). On the estimation of parameter of rare events in environmental time series. In Statistics for the Environment, volume 2 of Water Related Issues, pp. 225-241. Wiley.
Heffernan JE, Stephenson AG (2016). ismev: An Introduction to Statistical Modeling of Extreme Values. R package version 1.41, URL http://CRAN.R-project.org/package=ismev.
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