- Rcpp sugar function
`sapply`

removed from C++ code to stop deprecated warnings on r-devel-linux-x86_64-fedora-clang - Minor improvements

`allocationRatioPlanned`

for simulating means and rates for a two treatment groups design can be a vector of length kMax, the number of stages`calcSubjectsFunction`

can be used in C++ version for simulating means and rates`calcEventsFunction`

added in getSimulationSurvival()`getPerformanceScore()`

added: calculates the performance score for simulation means results (1 and 2 groups; 2 stages)- Performance of simulation rates improved for 1 and 2 groups (by translating from R to C++)
- Performance of simulation means improved for 1 and 2 groups
- Two-sided O’Brien and Fleming beta-spending function corrected
- Issue in plot type 5 for sample size means and rates fixed
- Added dependency on R >= 3.6.0
- Minor improvements

- Design objects can be piped into
`getDataset()`

to enable pipe syntax for analysis, e.g.,`getDesignGroupSequential() |> getDataset(dataMeans) |> getAnalysisResults()`

- Performance of simulation means improved for 1 and 2 groups (by translating from R to C++)
- Total test time was cut in half by improving simulation performance and enabling parallel testing
`SystemRequirements: C++11`

added to DESCRIPTION to enable C++ 11 compilation on R 3.x- Minor improvements

- Help pages improved
- Parameter
`betaAdjustment`

can also be used in`getDesignInverseNormal()`

`subsets`

removed from result of`getWideFormat()`

for non-enrichment datasets- Summary of enrichment survival simulation results improved
- Parameter
`populations`

in`getSimulationEnrichmentMeans()`

,`getSimulationEnrichmentRates()`

, and`getSimulationEnrichmentSurvival()`

has been removed since it is always derived from`effectList`

- Bug fixed in
`getSimulationEnrichmentRates()`

for calculated non-integer number of subjects - Futility probabilities and futility bounds corrected for two-sided beta-spending function approach
`getRawData()`

: the resulting`data.frame`

now contains the correct`stopStage`

and`lastObservationTime`

(formerly`observationTime`

)`deltaWT`

is provided with three decimal points for typeOfDesign = “WToptimum”- Generic
`as.data.frame`

functions improved - testthat version changed to edition 3
- The rpact source code has been published on GitHub and the bug report link has been changed to https://github.com/rpact-com/rpact/issues
- Minor improvements

- Two-sided beta-spending approach with binding and non-binding futility bounds
- Delayed response utility added in design specification

`getSimulationMultiArmSurvival()`

: single stage treatment arm specific event numbers account for selection procedure- User defined selection function can be used in
`getSimulationEnrichmentRates()`

and`getSimulationEnrichmentSurvival()`

- Design summary extended by information of
`getDesignCharacteristics()`

`getSimulationSurvival()`

: the result object now contains the new parameter`overallEventsPerStage`

, which contains the values previously given in`eventsPerStage`

(it was “cumulative” by mistake);`eventsPerStage`

contains now the non-cumulative values as expected- Minor improvements

- Performance of group sequential and Fisher’s combination test designs improved
- ‘register’ storage class specifier removed from C++ sources
- Minor improvements

- Performance of group sequential and Fisher’s combination test designs improved (by translating from R to C++)
- Numerical issue in analysis time calculation for survival design in specific cases resolved
- The internally used minimum quantile function value was changed from
`stats::qnorm(1e-323)`

to`stats::qnorm(1e-100)`

- Unit tests extended
- Minor improvements

- C++ warning “using integer absolute value function ‘abs’ when argument is of floating point type” under r-devel-linux-x86_64-debian-clang removed
- getDataset: support of emmeans result objects as input improved
`getAnalysisResults()`

: issue with zero values in the argument ‘userAlphaSpending’ fixed- Minor improvements

- Simulation tools for enrichment design testing means, rates, and
hazard ratios: function
`getSimulationEnrichmentMeans()`

,`getSimulationEnrichmentRates()`

,`getSimulationEnrichmentSurvival()`

available for simulation of enrichment designs; note that this is a novel implementation, hence experimental `getDesignGroupSequential()`

/`getDesignInverseNormal()`

: new typeOfDesign = “noEarlyEfficacy” added

`getSimulationSurvival()`

: bug fixed for accruallIntensity = 0 at some accrual intervals- For observed conditional power, standardized theta not truncated to
0 any more in
`getSimulationMultiArmMeans()`

,`getSimulationMultiArmRates()`

, and`getSimulationMultiArmSurvival()`

- Conditional power calculation for analysis rates takes into account differently the null value of condErrorRate
- Function
`testPackage()`

: a problem with downloading full set of unit tests under Debian/Linux has been fixed - Generic function
`kable()`

improved: optional knitr::kable arguments enabled, e.g., format - In print and summary output, “overall” renamed to “cumulative” if means, stDevs, or rate are calculated over stages rather than stage-wise
- getDataset: support of emmeans result objects as input improved
- Numerical accuracy of
`qnorm()`

calculations improved - Analysis enrichment results now support the generic function
`as.data.frame()`

- Naming of the stage results parameters in the print output improved
- New example data added: “rawDataTwoArmNormal”
- Issue in summary fixed: earlyStop and rejectPerStage were no longer displayed
- Minor improvements

- Performance of two-sided Pampallona & Tsiatis design improved
- 12 example datasets added
- Sample sizes in plots now have the same format as in print output; format can be changed using setOutputFormat()
- getDataset supports emmeans result objects as input
- Print output of simulation results improved
- Added dependency on R >= 3.5.0 because serialized objects in serialize/load version 3 cannot be read in older versions of R
- Plot label interface for configuration via the rpact Shiny app implemented
- Minor improvements

- Analysis tools for enrichment design testing means, rates, and
hazard ratios: function
`getAnalysisResults()`

generalized for enrichment designs; function`getDataset()`

generalized for entering stratified data; manual extended for enrichment designs - Automatic boundary recalculations during the trial for analysis with
alpha spending approach, including under- and over-running: setup via
the optional parameters ‘maxInformation’ and ‘informationEpsilon’ in
function
`getAnalysisResults()`

- The new function
`getObjectRCode()`

(short:`rcmd()`

) returns the original R command which produced any rpact result object, including all dependencies `getWideFormat()`

and`getLongFormat()`

return a dataset object in wide format (unstacked) or long format (narrow, stacked)- Generic function
`kable()`

returns the output of an rpact result object formatted in Markdown. - Generic function
`t()`

returns the transpose of an rpact result object

- New argument ‘plotSettings’ added to all plot functions
- Summary for design, simulation, and analysis unified and extended
- Issue in
`getDesignFisher()`

fixed:`getDesignFisher(method = "noInteraction", kMax = 3)`

and`getDesignFisher(method = "noInteraction")`

produced different results - ‘normalApproximation’ default value changed to TRUE for multi-arm analysis of rates
- Repeated p-values: in search algorithm, upper bound of significance level corrected when considering binding futility bounds
`testPackage()`

: the default call is now running only a small subset of all available unit tests; with the new argument ‘connection’ the owners of the rpact validation documentation can enter a ‘token’ and a ‘secret’ to get full access to all unit tests- Scaling of grid plots improved
- Minor improvements

- Beta-spending function approach with binding futility bounds
- Pampallona & Tsiatis design with binding and non-binding futility bounds
- Argument ‘accrualIntensityType’ added to
`getSampleSizeSurvival()`

,`getSimulationSurvival()`

,`getNumberOfSubjects()`

, and`getEventProbabilities()`

- Specification of Weibull survival times possible through definition of hazard rates or medians in simulation tool
- Minor improvements

- New utility functions
`getParameterCaption()`

and`getParameterName()`

implemented - Design parameters added to simulation print output
- Generic function
`as.matrix()`

improved for several result objects - Issue in
`getAvailablePlotTypes()`

for sample size and power results fixed - Issue for
`getDesignFisher(kMax = 1)`

in`getSimulationMultiArm...()`

fixed `getSimulationMultiArmSurvival()`

: correlation of log-rank statistics revised and improved`getSimulationMultiArmMeans()`

: name of the first effectMeasure option “effectDifference” changed to “effectEstimate”`getSimulation[MultiArm][Means/Rates/Survival]()`

: argument ‘showStatistics’ now works correctly and is consistently FALSE by default for multi-arm and non-multi-arm`getSimulation[MultiArm]Survival()`

: generic function`summary()`

improved`getAnalysisResults()`

: generic function`summary()`

improved`getAccrualTime()`

: improved and new argument ‘accrualIntensityType’ added- Header text added to design summaries
`getSampleSizeSurvival()`

: field ‘studyDurationH1’ in result object was replaced by ‘studyDuration’, i.e., ‘studyDurationH1’ is deprecated and will be removed in future versions- Minor changes in the inline help and manual
- Minor improvements

`getSimulationMultiArmSurvival()`

: plannedEvents redefined as overall events over treatment arms`getStageResults()`

: element overallPooledStDevs added; print output improved- Unit tests improved: test coverage and references to the functional specification optimized
- plot type 13 of
`getSampleSizeSurvival()`

with user defined lambdas with different lengths: issue fixed - Minor improvements

- Vignette “rpact: Getting Started” included into the package
- New summary output option “rpact.summary.width” added
- Generic function
`summary()`

improved for several result objects - Result output of function
`testPackage()`

improved `getSimulationMultiArm[Means/Rates/Survival]()`

: stage index corrected for user defined calcSubjectsFunction or calcEventsFunction`getSimulationMultiArmRates()`

: adjustment for identical simulated rates to account for ties`getSimulationMultiArmSurvival()`

: corrected correlation of test statistics- Output formatting improved
- Minor improvements

- Simulation tools for multi-arm design testing means, rates, and hazard ratios
- Analysis tools for multi-arm design testing means, rates, and hazard ratios
`getSimulationRates()`

: exact versions for testing a rate (one-sample case) and equality of rates (two-sample case)- getDataset: multi-arm datasets for means, rates, and survival data
- Analysis of fixed designs
- Summary for analysis and simulation result objects newly implemented
- Summary for most rpact result objects substantially improved and enhanced
`getEventProbabilities()`

: plot of result object`getNumberOfSubjects()`

: plot of result object- Visual comparison of two designs:
`plot(design1, design2)`

- Functions setOutputFormat and getOutputFormat implemented: definition of user defined output formats
`getSimulationMeans()`

: thetaH1 and stDevH1 can be specified for assessment of sample size recalculation (replaces thetaStandardized)`getSimulationSurvival()`

: separate p-values added to the aggregated simulation data for Fisher designs`getSimulationMeans()`

,`getSimulationRates()`

: Cumulated number of subjects integrated in getData object`getSimulation[MultiArm][Means/Rates/Survival]()`

: new logical argument ‘showStatistics’ added- Example datasets (csv files) added to the package
- plot type “all”: plot all available plots of an object in one step
using
`plot(x, type = "all")`

- plot type improved: ‘type’ now can be a vector, e.g.,
`plot(x, type = c(1, 3))`

`plot(x, grid = 1)`

: new plot argument ‘grid’ enables the plotting of 2 or more plots in one graphic

`getAnalysisResults()`

: list output implemented analogous to the output of all other rpact objects`getAnalysisResults()`

: the following stage result arguments were removed from result object because they were redundant: effectSizes, testStatistics, and pValues. Please use the ‘.stageResults’ object to access them, e.g., results$.stageResults$effectSizes`getAnalysisResults()`

: the following design arguments were removed from result object because they were redundant: stages, informationRates, criticalValues, futilityBounds, alphaSpent, and stageLevels. Please use the ‘.design’ object to access them, e.g., results$.design$informationRates- Optional argument ‘stage’ removed from functions getConditionalPower, getConditionalRejectionProbabilities, getFinalPValue, getRepeatedPValues, and getTestActions
- Function testPackage improved, e.g., results will be displayed now on screen
- Help system renewed and approved, e.g., help for corresponding generic functions (e.g., plot) linked where applicable
- Function getPiecewiseSurvivalTime improved: pi1 and pi2 will not be calculated any longer for lambda- or median-based definitions; eventTime only required for pi-based definitions
`plot(x, showSource = TRUE)`

improved for all rpact result objects x- Performance of plotting analysis results of Fisher designs improved
`getSimulationRates()`

: issue for futility stopping for Fisher’s combination test fixed`getSimulationSurvival()`

: issue for expected number of events fixed`getSimulationSurvival()`

: if eventsNotAchieved > 0, rejection/futility rate and analysis time is estimated for valid simulation runs`getSimulationSurvival()`

: output improved for lambda1/median1/hazardRatio with length > 1`getSampleSizeSurvival()`

: calculation of the maximum number of subjects given the provided argument ‘followUpTime’ improved`getPiecewiseSurvivalTime()`

: delayed response via list-based piecewiseSurvivalTime definition enabled`getAccrualTime()`

/`getSimulationSurvival()`

: issue with the calculation of absolute accrual intensity by given relative accrual intensity fixed`getRawData()`

: issue for multiple pi1 solved- Implementation of the generic function ‘names’ improved
- Test coverage improved: lots of new unit tests added
- License information in the DESCRIPTION file corrected: changed from GPL-3 to LGPL-3
- Minor improvements

- Boundaries on effect scale for testing means now accounts for the unknown variance case
`getAnalysisSurvival()`

: calculation of stage wise results not more in getStageResults`getStageResults()`

: the calculation of ‘effectSizes’ for survival data and thetaH0 != 1 was corrected`getDataset()`

of survival data: issue with the internal storage of log ranks fixed- Sample size plot: issue for kMax = 1 fixed
`getSampleSizeSurvival()`

with piecewise survival time: issue with calculation of ‘maxNumberOfSubjects’ for given ‘followUpTime’ fixed- Internal Shiny app interface improved
- Minor improvements

- Assumed median survival time: get[SampleSize/Power/Simulation]Survival now support direct input of arguments ‘median1’ and ‘median2’
- Output of generic function
`summary()`

improved - Plot type 5 of getPower[…] and getSimulation[…] objects improved
- Output of
`getSampleSizeSurvival()`

with given maxNumberOfSubjects improved - Output of
`get[SampleSize/Power]Survival()`

for Kappa != 1 improved - Assert function for minNumberOfSubjectsPerStage corrected for undefined conditionalPower
- Two-sided boundaries on effect scale in survival design improved
- Error in
`summary()`

for`getDesign[...]()`

fixed - Other minor improvements

- Incorrect output of function
`summary()`

fixed for`getSampleSize[...]()`

and`getPower[...]()`

- as.data.frame: default value of argument ‘niceColumnNamesEnabled’ changed from TRUE to FALSE

- Plot function for Fisher design implemented
- Generic function
`summary()`

implemented for`getDesign[...]()`

,`getSampleSize[...]()`

,`getPower[...]()`

, and`getSimulation[...]()`

results: a simple boundary summary will be displayed

- Generic function as.data.frame improved for
`getDesign[...]()`

,`getSampleSize[...]()`

,`getPower[...]()`

, and`getSimulation[...]()`

results - Output of
`getStageResults()`

improved - Improvements for Shiny app compatibility and better Shiny app performance
- Repeated p-values are no longer calculated for typeOfDesign = “WToptimum”
- Piecewise survival time improved for numeric definition: median and pi will not be calculated and displayed any longer
- Plot: legend title and tick mark positioning improved; optional arguments xlim and ylim implemented
- Sample size/power: usage of argument ‘twoSidedPower’ optimized
- Performance of function rpwexp/getPiecewiseExponentialRandomNumbers improved (special thanks to Marcel Wolbers for his example code)
- For group sequential designs a warning will be displayed if information rates from design not according to data information
- Format for output of standard deviation optimized

- Minor corrections in the inline help
- Labeling of lower and upper critical values (effect scale) reverted
- Simulation for Fisher’s combination test corrected
- Parameter minNumberOfAdditionalEventsPerStage renamed to minNumberOfEventsPerStage
- Parameter maxNumberOfAdditionalEventsPerStage renamed to maxNumberOfEventsPerStage
- Parameter minNumberOfAdditionalSubjectsPerStage renamed to minNumberOfSubjectsPerStage
- Parameter maxNumberOfAdditionalSubjectsPerStage renamed to maxNumberOfSubjectsPerStage
- Output of function
`getAccrualTime()`

improved - Validation of arguments maxNumberOfIterations, allocation1, and allocation2 added: check for positive integer
- Function
`getSampleSizeSurvival()`

improved: numeric search for accrualTime if followUpTime is given - Default value improved for analysis tools: if no effect was specified for conditional power calculation, the observed effect is selected
- Fixed: function getDataset produced an error if only one log-rank value and one event was defined
- Number of subjects per treatment arm are provided in output of simulation survival if allocation ratio != 1
- Function getSimulationSurvival improved: first value of minNumberOfEventsPerStage and maxNumberOfEventsPerStage must be NA or equal to first value of plannedSubjects

- Function base::isFALSE replaced to guarantee R 3.4.x compatibility
- C++ compiler warning on r-devel-linux-x86_64-debian-clang system removed
- C++ compiler error on r-patched-solaris-x86 system fixed

- Power calculation at given or adapted sample size for means, rates and survival data
- Sample size and power calculation for survival trials with piecewise accrual time and intensity
- Sample size and power calculation for survival trials with exponential survival time, piecewise exponential survival time and survival times that follow a Weibull distribution
- Simulation tool for survival trials; our simulator is very fast because it was implemented with C++. Adaptive event number recalculations based on conditional power can be assessed
- Simulation tool for designs with continuous and binary endpoints. Adaptive sample size recalculations based on conditional power can be assessed
- Comprehensive and unified tool for performing sample size calculation for fixed sample size design
- Enhanced plot functionalities

- Fisher design, analysis of means or rates, conditional rejection probabilities (CRP): calculation issue fixed for stage > 2
- Call of getSampleSize[Means/Rates/Survival] without design argument implemented
- For all
`set.seed()`

calls ‘kind’ and ‘normal.kind’ were specified as follows: kind = “Mersenne-Twister”, normal.kind = “Inversion” - Minor code optimizations, e.g. ‘return()’ replaced by ‘return(invisible())’ if reasonable
- Bug in
`readDatasets()`

fixed: variable names ‘group’ and ‘groups’ are now accepted - “Overall reject per stage” and “Overall futility per stage” renamed to “Overall reject” and “Overall futility”, respectively (also variable names)
- Labels “events..” and “..patients..” consistently changed to “# events..” and “# patients…”, respectively
- Output format for ‘allocationRatioPlanned’ specified
- Method ‘show’ of class ‘ParameterSet’ expanded: R Markdown output features implemented
`getSampleSizeSurvival()`

: argument ‘maxNumberOfPatients’ was renamed in ‘maxNumberOfSubjects’- Result output, inline help and documentation: the word ‘patient’ was replaced by ‘subject’
- Variables ‘numberOfSubjectsGroup1’ and ‘numberOfSubjectsGroup2’ were renamed to ‘numberOfSubjects1’ and ‘numberOfSubjects1’
- Final p-values for two-sided test (group sequential, inverse normal, and Fisher combination test) available
- Upper and lower boundaries on effect scale for testing rates in two samples

- First release of rpact