
This function estimates the parameters of the Slash distribution from the trimmed L-moments (TL-moments) having trim level 1. The relations between distribution parameters and TL-moments are shown under lmomsla
.
parsla(lmom, ...)
An R
list
is returned.
The type of distribution: sla
.
The parameters of the distribution.
The source of the parameters: “parsla”.
A TL-moment object from TLmoms
with trim=1
.
Other arguments to pass.
W.H. Asquith
Rogers, W.H., and Tukey, J.W., 1972, Understanding some long-tailed symmetrical distributions: Statistica Neerlandica, v. 26, no. 3, pp. 211--226.
TLmoms
, lmomsla
, cdfsla
, pdfsla
, quasla
if (FALSE) {
par1 <- vec2par(c(-100, 30), type="sla")
X <- rlmomco(500, par1)
lmr <- TLmoms(X, trim=1)
par2 <- parsla(lmr)
F <- seq(0.001,.999, by=0.001)
plot(qnorm(pp(X)), sort(X), pch=21, col=8,
xlab="STANDARD NORMAL VARIATE",
ylab="QUANTILE")
lines(qnorm(F), quasla(F, par1), lwd=3)
lines(qnorm(F), quasla(F, par2), col=2)
}
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