Create a ggplot for a TVGEV Object
An object with class "TVGEV".
Character giving the "geometry" to be used for the layer corresponding to the (timeseries) data.
The type of result shown along with the series used.
For now, only the timeseries of quantiles as computed by
quantile.TVGEV can be added.
Not used yet
A graphic object inheriting from "ggplot".
Mind that several methods of the class "TVGEV" such
as predict quantMax, coef produce results
that can be autoplotted.