# generate nSample values of two lognormal random variables
mu1 = log(110)
mu2 = log(100)
sigma1 = 0.25
sigma2 = 0.15
(coefSum <- estimateSumLognormal( c(mu1,mu2), c(sigma1,sigma2) ))
## mu sigma
## 5.3576474 0.1499077
A check by random numbers shows close correspondence.
For a test on correlated variables see unit test test/thatthat/test_sumLognormal.