shape.vries | R Documentation |
Given a sample of exceedances, compute the moment estimator of the positive shape parameter using the ratio of log ratio of exceedance and it's square.
shape.vries(xdat, k)
xdat |
vector of positive observations of length |
k |
number of largest order statistics |
a data frame with the number of order statistics k
and the shape parameter estimate shape
, or a single numeric value if k
is a scalar.
de Haan, L. and Peng, L. (1998). Comparison of tail index estimators, Statistica Neerlandica 52, 60-70.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.