Density, distribution function, quantile function and random
generation for the Extended Log Gamma distribution with parameters
mu (location), sigma (scale) and lambda (shape).
logical. If TRUE, probabilities/densities p are returned
as log(p)
lower.tail
logical. If TRUE (default), probabilities are P[X <= x],
otherwise, P[X > x].
zero
numeric. A threshold, values of lambda smaller than
zero will report the asymptotic value of the function at 0.
Value
dloggamma gives the density, ploggamma gives the distribution
function, qloggamma gives the quantile function, and rloggamma
generates random deviates.