| agghaz | Aggregated Hazard |
| as.boundaries | Convert a "PwrGSD" object to a "boundaries" object |
| CDFOR2LRR | Convert CDF Odds Ratio to Logged Relative Risks |
| CondPower | Conditional type I and type II error probabilities given current value of the test statistic |
| cpd.PwrGSD | Create a skeleton compound PwrGSD object |
| CRRtoRR | Cumulative-risk ratios to risk ratios |
| CY2TOShaz | Calender year rates to Study Year Rates |
| detail | Function to extract the 'detail' component from a 'PwrGSD' object |
| DX | A utility function for forming differences |
| Elements | Create a subset of a "cpd.PwrGSD" object |
| EX1gXK | A function for computing the bias adjusted point estimate for a statistic observed to cross the efficacy boundary. |
| GrpSeqBnds | Computes efficacy and futility boundaries |
| gsd.dens | A function for computing the probability density for the group sequentially monitored test statistic. |
| Haybittle | The Haybittle method of Boundary Construction |
| IntSurvDiff | Weighted Integrated Survival function test |
| LanDemets | The Lan-Demets method of Boundary Construction |
| lookup | Lookup values for a piecewise constant function |
| lung | Mayo Clinic Lung Cancer Data |
| mystack | Stack a dataset |
| mysurvfit | My Survfit |
| ObrienFleming | The O'Brien-Fleming Alpha Spending Function |
| plot.cpd.PwrGSD | Plot Method for cpd.PwrGSD objects |
| Pocock | The Pocock Alpha Spending Function |
| Pow | The Wang-Tsiatis Power Alpha Spending Function |
| Power | Extract the Power results |
| PwrGSD | Calculate Power in a Group Sequential Design |
| RCM2RR | Relative cumulative mortality to Relative Risk |
| RR2RCM | Relative risk to Relative Cumulative Mortality |
| SC | The Stochastic Curtailment method of Boundary Construction |
| SCtoBdry | Converts a stochastic curtailment boundary (conditional type I or II error probability) into a (efficacy or futility) boundary on the standardized Z scale |
| SimGSB | Verifies the results of "GrpSeqBnds" via simulation |
| wtdlogrank | Weighted log-rank test |