prophr {ssutil} | R Documentation |
Calculate Event Probability in the Experimental Group Given a Hazard Ratio
Description
Computes the event probability in the experimental group based on the event probability in the control group and a specified hazard ratio, assuming proportional hazards.
Usage
prophr(p0, hr)
Arguments
p0 |
Numeric scalar. Probability of an event in the control group (between 0 and 1). |
hr |
Numeric scalar. Hazard ratio (must be > 0). |
Details
This is useful for sample size calculations, for example in PASS (TM), which does not automatically adjust the event rate for the experimental group.
Value
Numeric. The probability of an event in the experimental group.
Examples
prophr(0.05, 0.6)
[Package ssutil version 1.0.0 Index]