Functions > Statistics > Probability Distributions > Log Normal Distribution
Log Normal Distribution
The following functions are associated with the log normal equation:
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dlnorm(x, μ, σ)—Returns the probability density for value x.
plnorm(x, μ, σ)—Returns the cumulative probability distribution for value x.
qlnorm(p, μ, σ)—Returns the inverse cumulative probability distribution for probability p.
rlnorm(m, μ, σ)—Returns a vector of m random numbers having the log normal distribution.
x is a scalar or vector of real values, x ≥ 0. To allow integration and other operations over this argument, values outside of the stated range are allowed, but they produce a 0 result.
μ is a real mean of the natural logs of x.
σ is a real standard deviation of the natural logs of x, σ> 0.
p is a real probability, 0 ≤ p ≤ 1.
m is an integer, m > 0.
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