getDesignConditionalDunnett {rpact} | R Documentation |
Defines the design to perform an analysis with the conditional Dunnett test.
getDesignConditionalDunnett( alpha = 0.025, informationAtInterim = 0.5, secondStageConditioning = TRUE )
alpha |
The significance level alpha, default is |
informationAtInterim |
The information to be expected at interim, default is |
secondStageConditioning |
The way the second stage p-values are calculated within the closed system of hypotheses.
If |
For performing the conditional Dunnett test the design must be defined through this function.
You can define the information fraction and the way of how to compute the second stage
p-values only in the design definition, and not in the analysis call.
See getClosedConditionalDunnettTestResults
for an example and Koenig et al. (2008) and
Wassmer & Brannath (2016), chapter 11 for details of the test procedure.
Returns a TrialDesign
object.
The following generics (R generic functions) are available for this result object:
names
to obtain the field names,
print
to print the object,
summary
to display a summary of the object,
plot
to plot the object,
as.data.frame
to coerce the object to a data.frame
,
Click on the link of a generic in the list above to go directly to the help documentation of
the rpact
specific implementation of the generic.
Note that you can use the R function methods
to get all the methods of a generic and
to identify the object specific name of it, e.g.,
use methods("plot")
to get all the methods for the plot
generic.
There you can find, e.g., plot.AnalysisResults
and
obtain the specific help documentation linked above by typing ?plot.AnalysisResults
.
Other design functions:
getDesignCharacteristics()
,
getDesignFisher()
,
getDesignGroupSequential()
,
getDesignInverseNormal()
,
getPowerAndAverageSampleNumber()