Description Usage Arguments Details References See Also Examples
Density, distribution function, quantile function and random generation for the half-Cauchy distribution.
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x, q |
vector of quantiles. |
sigma |
positive valued scale parameter. |
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]. |
p |
vector of probabilities. |
n |
number of observations. If |
If X follows Cauchy centered at 0 and parametrized by scale σ, then |X| follows half-Cauchy distribution parametrized by scale σ. Half-Cauchy distribution is a special case of half-t distribution with ν=1 degrees of freedom.
Gelman, A. (2006). Prior distributions for variance parameters in hierarchical models (comment on article by Browne and Draper). Bayesian analysis, 1(3), 515-534.
Jacob, E. and Jayakumar, K. (2012). On Half-Cauchy Distribution and Process. International Journal of Statistika and Mathematika, 3(2), 77-81.
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