Description Usage Arguments Details Value Author(s) References Examples
View source: R/kochar.exp.test.R
Performs Kochar test for the composite hypothesis of exponentiality, see e.g. Kochar (1985).
1 | kochar.exp.test(x, simulate.p.value=FALSE, nrepl=2000)
|
x |
a numeric vector of data values. |
simulate.p.value |
a logical value indicating whether to compute p-values by Monte Carlo simulation. |
nrepl |
the number of replications in Monte Carlo simulation. |
The Kochar test for exponentiality is based on the following statistic:
T = √{\frac{108n}{17}}\frac{∑_{i=1}^n{J(i/(n+1))X_{(i)}}}{∑_{i=1}^n{X_i}},
where
J(u) = 2(1-u)[1-\log{(1-u)}] - 1.
The statistic T is asymptotically standard normal.
A list with class "htest" containing the following components:
statistic |
the value of the Kochar statistic. |
p.value |
the p-value for the test. |
method |
the character string "Kochar test for exponentiality". |
data.name |
a character string giving the name(s) of the data. |
Alexey Novikov and Ruslan Pusev
Kochar, S.C. (1985): Testing exponenttality against monotone failure rate average. — Communications in Statistics – Theory and Methods, vol. 14, pp. 381–392.
1 2 | kochar.exp.test(rexp(100))
kochar.exp.test(rchisq(100,1))
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