rpact: Confirmatory Adaptive Clinical Trial Design and Analysis
getStageResults {rpact}  R Documentation 
Get Stage Results
Description
Returns summary statistics and pvalues for a given data set and a given design.
Usage
getStageResults(design, dataInput, ..., stage = NA_integer_)
Arguments
design 
The trial design.

dataInput 
The summary data used for calculating the test results.
This is either an element of DatasetMeans , of DatasetRates , or of DatasetSurvival
and should be created with the function getDataset .
For more information see getDataset .

... 
Further (optional) arguments to be passed:
thetaH0 The null hypothesis value,
default is 0 for the normal and the binary case (testing means and rates, respectively),
it is 1 for the survival case (testing the hazard ratio).
For noninferiority designs, thetaH0 is the noninferiority bound.
That is, in case of (onesided) testing of

means: a value != 0
(or a value != 1 for testing the mean ratio) can be specified.

rates: a value != 0
(or a value != 1 for testing the risk ratio pi1 / pi2 ) can be specified.

survival data: a bound for testing H0:
hazard ratio = thetaH0 != 1 can be specified.
For testing a rate in one sample, a value thetaH0 in (0, 1) has to be specified for
defining the null hypothesis H0: pi = thetaH0 .
normalApproximation The
type of computation of the pvalues. Default is FALSE for
testing means (i.e., the t test is used) and TRUE for testing rates and the hazard ratio.
For testing rates, if normalApproximation = FALSE is specified, the binomial test
(one sample) or the exact test of Fisher (two samples) is used for calculating the pvalues.
In the survival setting, normalApproximation = FALSE has no effect.
equalVariances The type of t test. For testing means in two treatment groups, either
the t test assuming that the variances are equal or the t test without assuming this,
i.e., the test of WelchSatterthwaite is calculated, default is TRUE .
directionUpper The direction of onesided testing.
Default is TRUE which means that larger values of the
test statistics yield smaller pvalues.
intersectionTest Defines the multiple test for the intersection
hypotheses in the closed system of hypotheses when testing multiple treatment arms.
Five options are available: "Dunnett" , "Bonferroni" , "Simes" ,
"Sidak" , and "Hierarchical" , default is "Dunnett" .
varianceOption Defines the way to calculate the variance in multiple treatment arms (> 2)
for testing means. Three options are available: "overallPooled" ,
"pairwisePooled" , and "notPooled" , default is "overallPooled" .

stage 
The stage number (optional). Default: total number of existing stages in the data input.

Details
Calculates and returns the stage results of the specified design and data input at the specified stage.
Value
Returns a StageResults
object.
How to get help for generic functions
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
.
See Also
Other analysis functions:
getAnalysisResults()
,
getClosedCombinationTestResults()
,
getClosedConditionalDunnettTestResults()
,
getConditionalPower()
,
getConditionalRejectionProbabilities()
,
getFinalConfidenceInterval()
,
getFinalPValue()
,
getRepeatedConfidenceIntervals()
,
getRepeatedPValues()
,
getTestActions()
Examples
design < getDesignInverseNormal()
dataRates < getDataset(
n1 = c(10, 10),
n2 = c(20, 20),
events1 = c( 8, 10),
events2 = c(10, 16))
getStageResults(design, dataRates)