Jackson's statistic for the exponentiality test.
Arguments
- x
Numeric vector or matrix. In the second case,
rows are considered as samples.
- norm
Logical: if TRUE
, the statistic is
normalized by using the asymptotic mean and
standard deviation, respectively 2 and 1.
Value
A numeric vector of length 1
when x
is a
vector, or with length nrow(x)
when x
is a
matrix.
Details
The value(s) of the statistic are the ratio of two weighted
means of the order statistics.
References
J. Beirlant and T. de Weit and Y. Goegebeur(2006) A
Goodness-of-fit Statistic for Pareto-Type Behaviour,
J. Comp. Appl. Math., 186(1), pp. 99-116