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pelle
2012 Jul 22
1
Adding gamma and 3-parameter log normal distributions to L-moments ratio diagram lmrd()
...ckage 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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2010 Jan 28
4
Problems with fitdistr
Hi,
I want to estimate parameters of weibull distribution. For this, I am using
fitdistr() function in MASS package.But when I give fitdistr(c,"weibull") I
get a Error as follows:-
Error in optim(x = c(4L, 41L, 20L, 6L, 12L, 6L, 7L, 13L, 2L, 8L, 22L,
:
non-finite value supplied by optim
Any help or suggestions are most welcomed
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