SO.LRT computes the likelihood ratio test statistic
for stochastic ordering against equality assuming marginal
compatibility for both alternatives. Note that this
statistic does not have a $\chi^2$
distribution, so the p-value computation is not
straightforward. The SO.trend.test function
implements a permutation-based evaluation of the p-value
for the likelihood-ratio test.
Usage
SO.LRT(cbdata, control = soControl())
Arguments
cbdata
a CBData object
control
an optional list of control settings,
usually a call to soControl. See there for
the names of the settable control values and their
effect.
Value
The value of the likelihood ratio test statistic is
returned with two attributes:
ll0the log-likelihood under $H_0$
(equality)
ll1the log-likelihood under $H_a$
(stochastic order)