meanAL | R Documentation |
Accessory functions.
meanAL(mu, sigma, tau) varAL(sigma, tau) invvarAL(x, tau)
mu |
location parameter. |
sigma |
scale parameter. |
tau |
skewness parameter. |
x |
numeric value. |
meanAL
computes the mean of an asymmetric Laplace with parameters mu
, sigma
and tau
.
varAL
computes the variance of an asymmetric Laplace with parameters sigma
and tau
.
invvarAL
computes the scale parameter of an asymmetric Laplace with parameter tau
and variance x
.
Marco Geraci
Yu K and Zhang J (2005). A three-parameter asymmetric Laplace distribution and its extension. Communications in Statistics-Theory and Methods 34, 1867–1879.
dal
, mleAL
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