R packages developed by me.
container provides an enhanced version of base R’s list with a carefully designed set of extract, replace, and remove operations that make it easier and safer to work with list-like data structures.
Full documentation: https://rpahl.github.io/container/
GroupSeq is a GUI-based tool for computing probabilities of Group Sequential designs, particularly, critical boundaries, power, drift, and confidence intervals.
The numerical calculations are based on normally distributed test statistics and the so-called alpha spending approach by Lan-DeMets with various alpha spending functions being available to choose among.
Full documentation: https://rpahl.github.io/GroupSeq/