trend.test {CorrBin} | R Documentation |
The trend.test
function provides a common interface to the trend tests
implemented in this package: SO.trend.test
, RS.trend.test
, and
GEE.trend.test
. The details of each test can be found on their help page.
trend.test(cbdata, test = c("RS", "GEE", "GEEtrend", "GEEall", "SO"), exact = test == "SO", R = 100, control = soControl())
cbdata |
a CBData object |
test |
character string defining the desired test statistic. "RS" performs the Rao-Scott test
(RS.trend.test ), "SO" performs the stochastic ordering test (SO.trend.test ),
"GEE", "GEEtrend", "GEEall" perform the GEE-based test (GEE.trend.test ) with constant,
linearly modeled, and freely varying scale parameters, respectively. |
exact |
logical, should an exact permutation test be performed. Only an exact test can be performed for "SO". The default is to use the asymptotic p-values except for "SO". |
R |
integer, number of permutations for the exact test |
control |
an optional list of control settings for the stochastic order ("SO") test,
usually a call to soControl . See there for the names of the settable control
values and their effect. |
A list with two components and an optional "boot" attribute that contains the detailed results
of the permutation test as an object of class boot
if an exact test was performed.
statistic |
numeric, the value of the test statistic |
p.val |
numeric, asymptotic one-sided p-value of the test |
Aniko Szabo, aszabo@mcw.edu
SO.trend.test
, RS.trend.test
, and
GEE.trend.test
for details about the available tests.
data(shelltox) trend.test(shelltox, test="RS") set.seed(5724) #R=50 is too low to get a good estimate of the p-value trend.test(shelltox, test="RS", R=50, exact=TRUE)