search for: pwrgsd

Hello List: Please find uploaded to CRAN a new package, PwrGSD The package is intended for the design and analysis of group sequential trials There are two main functions, (1) GrpSeqBnds: computes group sequential stopping boundaries for interim analysis of a sequential trial based upon a normally distributed test statistic. This can be done via...

Hello List: Please find uploaded to CRAN a new package, PwrGSD The package is intended for the design and analysis of group sequential trials There are two main functions, (1) GrpSeqBnds: computes group sequential stopping boundaries for interim analysis of a sequential trial based upon a normally distributed test statistic. This can be done via...

...good understanding of the various approaches to sequential clinical trials designs, I thought that the gsDesign package seemed very impressive. I also understand that there are several other R packages that relate to sequential clinical trials designs, such as AGSDest , GroupSeq, ldbounds, MChtest, PwrGSD, and Seqmon. Some of these seem fairly comprehensive while others seem to focus on a single approach.   My questions center on the adequacy of SPLUS Seqtrial and the R Packages. I was wondering if there is anyone out there who would be familiar enough with these to comment on their relative merits...

...(2.0), neuralnet (1.3), nlstools (0.0-10), noia (0.94), nor1mix (1.1-2), party (0.9-9993), pcaPP (1.8), penalized (0.9-30), pgirmess (1.4.4), phyclust (0.1-5), picante (1.0-1), plotrix (2.8-3), plsdof (0.2-0), pmg (0.9-42), portfolio (0.4-5), portfolioSim (0.2-6), prefmod (0.8-19), PropCIs (0.1-5), PwrGSD (1.16), pyramid (1.2), qpcR (1.2-6), QRMlib (1.4.5), qvcalc (0.8-5), R.filesets (0.8.0), R2HTML (2.0.0), R2jags (0.02-02), randomSurvivalForest (3.6.2), rattle (2.5.24), rbenchmark (0.3), RcmdrPlugin.MAc (1.0.6), RcmdrPlugin.MAc (1.0.5), Rcpp (0.7.8), Rcpp (0.7.9), relations (0.5-7), reporttools (1...