Question

How do i test lognormal distribution?
in computer...
answer if you know...
otherwise i will dislike

Answer 1

R code: 1. If you want to compute probability then: dlnorm(x, meanlog = 0, sdlog = 1, log = FALSE) 2. If you want to compute probability then: plnorm(q, meanlog = 0, sdlog = 1, lower.tail = TRUE, log.p = FALSE) 3. If you want to compute quantile then: qlnorm(p, meanlog = 0, sdlog = 1, lower.tail = TRUE, log.p = FALSE) 4. If you want to apply randomly generated data then: rlnorm(n, meanlog = 0, sdlog = 1) # random Where: x, q: vector of quantiles. p: vector of probabilities. n: number of observations. meanlog, sdlog: mean and standard deviation of the distribution on the log scale with default values of 0 and 1 respectively. log, log.p logical; if TRUE, probabilities p are given as log(p). lower.tail logical; if TRUE (default), probabilities are P[X≤x], otherwise, P[X>x].

Based on the objective you can apply appropriate function.