return.level | R Documentation |
Computation of the associated return level with given period and GEV parameters.
return.level(period, loc, scale, shape)
period |
An integer indicating the wished return period T. |
loc |
A numerical value or vector for the GEV location parameter. Must be of length one or same length as |
scale |
A numerical value or vector for the GEV scale parameter. Must be of length one or same length as |
shape |
A numerical value or vector for the GEV shape parameter. Must be of length one or same length as |
The T
-year return level is a common value of risk in Extreme Value Theory. It represents the value that is expected to be exceeded once over T
years by the annual maxima. Given the parameters \mu
, \sigma
and \xi
of the GEV distribution associated to the yearly maxima, we can compute the associated T
-return level y_T
by:
y_T := \mu + \frac{\sigma}{\xi} \left[ \log\left(\frac{T}{T-1}\right)^{-\xi} -1 \right] ~.
A numerical value or a numerical vector, depending on the input arguments loc
, scale
, shape
Quentin Sebille
return.level(period = 100, loc = 1, scale = 1, shape = 1)
return.level(period = 200, loc = 1:10, scale = 1, shape = 0)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.