cor2x2                  Hazard ratios and correlations for the 2x2
                        statistics
crit2x2                 Critical values for the 2/3-1/3, 1/3-1/3-1/3,
                        and 1/2-1/2 procedures
eventProb               Calculate event probabilities
fac2x2analyze           Significance testing for the 2/3-1/3,
                        1/3-1/3-1/3, 1/2-1/2 procedures
fac2x2design            Power for the 2/3-1/3, 1/3-1/3-1/3, 1/2-1/2
                        procedures
lgrkPower               Unstratified (ordinary) logrank power
power12_12              Power of the 1/2-1/2 procedure
power13_13_13           Power of the 1/3-1/3-1/3 procedure
power23_13              Power of the 2/3-1/3 procedure
roundDown               Round down a negative number
simdat                  Simulated 2x2 factorial trial data
simdata                 Simulated 2x2 factorial trial data
strLgrkPower            Stratified (overall) logrank power
