shape: Plot for GPD Shape Parameter

In evir: Extreme Values in R

Description

Creates a plot showing how the estimate of shape varies with threshold or number of extremes.

Usage

shape(data, models = 30, start = 15, end = 500, reverse = TRUE,
    ci = 0.95, auto.scale = TRUE, labels = TRUE, ...)

Arguments

data	numeric vector of data
models	number of consecutive gpd models to be fitted
start	lowest number of exceedances to be considered
end	maximum number of exceedances to be considered
reverse	should plot be by increasing threshold (TRUE) or number of extremes (FALSE)
ci	probability for asymptotic confidence band; for no confidence band set to zero
auto.scale	whether or not plot should be automatically scaled; if not, xlim and ylim graphical parameters may be entered
labels	whether or not axes should be labelled
...	other graphics parameters

Details

For every model gpd is called. Evaluation may be slow.

Value

A table of results is returned invisibly.

See Also

gpd, plot.gpd, hill

Examples

## Not run: data(danish)
## Not run: shape(danish)
# Shape plot of heavy-tailed Danish fire insurance data 

Example output

evir documentation built on May 2, 2019, 12:21 p.m.