prophr: Calculate Event Probability in the Experimental Group Given a...
In ssutil: Sample Size Calculation Tools
prophr 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 or vector. Probability of an event in the control group (between 0 and 1).
hr
Numeric scalar or vector. Hazard ratio (must be > 0). Must be the same length as p0.
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)
ssutil documentation built on Sept. 18, 2026, 1:06 a.m.
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| prophr | 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 or vector. Probability of an event in the control group (between 0 and 1). |
hr |
Numeric scalar or vector. Hazard ratio (must be > 0). Must be the same length as |
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)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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