prob2grv | R Documentation |
This function converts a vector of annual nonexceedance probabilities F
to Gumbel reduced variates (GRV, grv
; Hosking and Wallis [1997, p. 92])
grv = -\log(-\log(F))\mbox{,}
where 0 \le F \le 1
. The Gumbel distribution (quagum
), which is a special case of the Generalized Extreme Value (quagev
), will plot as a straightline when the horizontal axis is GRV transformed.
prob2grv(f)
f |
A vector of annual nonexceedance probabilities. |
A vector of Gumbel reduced variates.
W.H. Asquith
Hosking, J.R.M., and Wallis, J.R., 1997, Regional frequency analysis—An approach based on L-moments: Cambridge University Press.
grv2prob
, prob2T
F <- nonexceeds()
grv <- prob2grv(F)
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