View source: R/generalized-pareto-distribution.R
gpd_bottom_parameters | R Documentation |
Below the first threshold, we extrapolate the curve using a generalized Pareto distribution. The three parameters of the distribution are chosen so as to ensure the continuity and derivability of the quantile function, and to match the average.
gpd_bottom_parameters(x1, y1, s1, a1, average)
x1 |
The first interpolation point. |
y1 |
The value of the function at the first interpolation point. |
s1 |
The value of the first derivative at the first interpolation point. |
a1 |
The value of the second derivative at the first interpolation point. |
average |
The average over the entire distribution. |
A list with the three parameters: mu
, sigma
and mu
.
Thomas Blanchet, Juliette Fournier, Thomas Piketty
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