[R] Adding gamma and 3-parameter log normal distributions to L-moments ratio diagram lmrd()

[otsvetkova]

How to adapt this piece of code but for: - gamma distribution - 3 parameter
log normal
More specifically, where can I find the specification of the parameter
(lmom) for pelgam() and pelln3()?

Lmom package info just gives: pelgam(lmom), lelln3(lmom), where lmom is a
numeric vector containing the L-moments of the distribution or of a data
sample.

# Draw an L-moment ratio diagram and add a line for the
# Weibull distribution
lmrd()
weimom <- sapply( seq(0, 0.9, by=0.01),
function(tau3) lmrwei(pelwei(c(0,1,tau3)), nmom=4) )
lmrdlines(t(weimom), col='darkgreen', lwd=2)

source: http://rgm2.lab.nig.ac.jp/RGM2/func.php?rd_id=lmom:lmrdpoints

Thank you.



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