nonexceeds {lmomco}R Documentation

Common Nonexceedance Probabilities

Description

This function returns a vector nonexceedance probabilities.

Usage

nonexceeds()

Value

A vector of selected nonexceedance probabilities useful in assessing the “frequency curve” in hydrologic applications (noninclusive). The nonexceedance probabilities extend further into the right-hand tail of the “distribution” to the 0.996 and 0.998 nonexceedance probability values as these are equivalent to the 250- and 500-year events respectively. The relation between annual recurrence interval and nonexceedance probability (when annual data are analyzed) is

F = 1 - frac{1}{T} mbox{,}


where T is the T-year event.

Author(s)

W.H. Asquith

See Also

quaexp, quagam, quagev, quaglo, quagno, quagpa, quagum, quakap, quanor, quape3, quawak, and check.fs

Examples

lmr <- lmom.ub(rnorm(20))
para <- parnor(lmr)
quanor(nonexceeds(),para)

[Package lmomco version 0.96.3 Index]