SymmetryTest {coin} | R Documentation |
Testing the symmetry of a response for repeated measurements in a complete block design.
## S3 method for class 'formula': symmetry_test(formula, data, subset = NULL, ...) ## S3 method for class 'SymmetryProblem': symmetry_test(object, teststat = c("max", "quad", "scalar"), distribution = c("asymptotic", "approximate", "exact"), alternative = c("two.sided", "less", "greater"), xtrafo = trafo, ytrafo = trafo, scores = NULL, check = NULL, ...) ## S3 method for class 'table': symmetry_test(object, ...)
formula |
a formula of the form
y1 + ... + yp ~ x1 + ... + xq | block where the variables
on the left and right hand side may be measured on arbitrary scales
and block is an optional factor for stratification. |
data |
an optional data frame containing the variables in the model formula. |
subset |
an optional vector specifying a subset of observations to be used. |
object |
an object inheriting from class SymmetryProblem or an
object of class table . |
teststat |
a character, the type of test statistic to be applied: either a
standardized scalar test statistic (scalar ), or a
maximum type statistic (max ) or a quadratic form
(quad ). |
alternative |
a character, the alternative hypothesis must be
one of "two.sided" (default), "greater" or
"less" . You can specify just the initial letter. |
distribution |
a character, the null distribution of the test statistic
can be computed exact ly or can be approximated by its
asymptotic distribution (asymptotic )
or via Monte-Carlo resampling (approximate ).
Alternatively, the functions
exact , approximate or asymptotic can be
used to specify how the exact conditional distribution of the test statistic
should be calculated or approximated. |
xtrafo |
a function of transformations (see trafo )
to be applied to the variables on the right hand side of
formula , see below. |
ytrafo |
a function of transformations (see trafo )
to be applied to the variables on the left hand side of
formula , see below. |
scores |
a named list of scores to be attached to ordered factors. In
case a variable is an unordered factor, it is coerced to
ordered first. |
check |
a function to be applied to objects of class
SymmetryTest in order to check for specific forms, see below. |
... |
further arguments to be passed to or from methods. |
This function handles symmetry problems where each block corresponds to exactly one observation with repeated measurements.
An object inheriting from class IndependenceTest
with
methods show
, pvalue
and statistic
.