extremis (version 1.2.1)

plotFrechet: Unit Fréchet Scatterplot in Log-log Scale

Description

This function depicts a scatterplot of bivariate data transformed to unit Fréchet scale.

Usage

plotFrechet(Y, tau = 0.95, raw = TRUE, ...)

Arguments

Y

list with data from which the estimates are to be computed.

tau

value used to threshold the data y; by default treshold = quantile(y, 0.95).

raw

logical; if TRUE, Y will be converted to unit Fréchet scale. If FALSE, Y will be understood as already in unit Fréchet scale.

...

other arguments to be passed to plot.

Author

Miguel de Carvalho

Details

The solid line corresponds to the boundary threshold in the log-log scale, with both axes being logarithmic.

Examples

## de Carvalho et al (2013, Fig. 5)
data(beatenberg)
plotFrechet(beatenberg, xlab = "Forest Cover", ylab = "Open Field",
            raw = FALSE)