log-normal distribution


log-normal distribution
a distribution of a random variable x such that y = ln x has a normal distribution; it is often used to model incubation times for diseases.

Medical dictionary. 2011.

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  • Log-normal distribution — Probability distribution name =Log normal type =density pdf μ=0 cdf μ=0 parameters =sigma > 0 infty < mu < infty support = [0,+infty)! pdf =frac{1}{xsigmasqrt{2piexpleft [ frac{left(ln(x) mu ight)^2}{2sigma^2} ight] cdf =frac{1}{2}+frac{1}{2}… …   Wikipedia

  • Log-Normal Distribution — A statistical distribution of random variables which have a normally distributed logarithm. Log normal distributions can model a random variable X where log(X) is normally distributed. These distributions, under multiplication and division, are… …   Investment dictionary

  • Log-logistic distribution — Probability distribution name =Log logistic type =density pdf cdf parameters =alpha>0 scale eta> 0 shape support =xin [0,infty) pdf = frac{ (eta/alpha)(x/alpha)^{eta 1} } { left [ 1+(x/alpha)^{eta} ight] ^2 } cdf ={ 1 over 1+(x/alpha)^{ eta} …   Wikipedia

  • Normal distribution — This article is about the univariate normal distribution. For normally distributed vectors, see Multivariate normal distribution. Probability density function The red line is the standard normal distribution Cumulative distribution function …   Wikipedia

  • log-normal — adjective Statistics of or denoting a set of data in which the logarithm of the variate follows a normal distribution …   English new terms dictionary

  • Multivariate normal distribution — MVN redirects here. For the airport with that IATA code, see Mount Vernon Airport. Probability density function Many samples from a multivariate (bivariate) Gaussian distribution centered at (1,3) with a standard deviation of 3 in roughly the… …   Wikipedia

  • Matrix normal distribution — parameters: mean row covariance column covariance. Parameters are matrices (all of them). support: is a matrix …   Wikipedia

  • Distribución log-normal — En probabilidades y estadísticas, la distribución log normal es una distribución de probabilidad de cualquier variable aleatoria con su logaritmo normalmente distribuido (la base de una función logarítmica no es importante, ya que loga X está… …   Wikipedia Español

  • Log-distance path loss model — The log distance path loss model is a radio propagation model that predicts the path loss a encounters inside a building or densely populated areas over distance.Applicable to / Under conditionsThe model is applicable to indoor propagation… …   Wikipedia

  • Normal-gamma distribution — Normal gamma parameters: location (real) (real) (real) (real) support …   Wikipedia


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