Hello all I am using the following two commands and get two completely different qq plots while meanlog and sdlog are almost the same. Any help is highly appreciated. dev.new() ; qqPlot(serving, dist = "lnorm", estimate.params = TRUE, add.line = TRUE) fitln <- fitdist(serving, "lnorm") dev.new();qqcomp(fitln) Many thanksMohsen [[alternative HTML version deleted]]