PwrGSD: Ch15-CDFOR2LRR – R documentation

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Ch15-CDFOR2LRR

Convert CDF Odds Ratio to Logged Relative Risks

Given the values of the baseline hazard and odds ratio of the CDF at a grid of time points find the corresponding logged risk ratio.

CDFOR2LRR(tcut, tmax, h0, CDFOR)

`tcut`	Grid of time points (left endpoints)
`tmax`	The right endpoint of the last interval
`h0`	Values of the baseline hazard function on given intervals
`CDFOR`	Values of the odds ratio of the CDF's on the given intervals

An m by 2 matrix, where m=length(tcut), having columns 'tcut' and logged RR.

Grant Izmirlian <izmirlian@nih.gov

Power in a Group Sequential Design

v2.3.3

GPL (>= 2)

Authors

Grant Izmirlian <izmirlig@mail.nih.gov>

Initial release