prob2lrv: Convert a Vector of Annual Nonexceedance Probabilities to Logistic Reduced Variates
Description
This function converts a vector of annual nonexceedance probabilities \(F\) to logistic reduced variates (LRV, \(lrv\))
$$lrv = 1/(\exp(-lrv) + 1)\mbox{,}$$
where \(0 \le F \le 1\). The logistic distribution, which is generalized by the Generalized Logistic (quaglo) with \(\kappa = 0\), will plot as a straightline when the horizontal axis is LRV transformed.
Usage
prob2lrv(f)
Value
A vector of logistic reduced variates.
Arguments
f
A vector of annual nonexceedance probabilities.
Author
W.H. Asquith
References
Bradford, R.B., 2002, Volume-duration growth curves for flood estimation in permeable catchments: Hydrology and Earth System Sciences, v. 6, no. 5, pp. 939--947.