getProbScalarRD: Calculate risks from arctanh RD and log OP

Description Usage Arguments Details Value Examples

View source: R/getProbScalarRD.R

Description

Calculate risks from arctanh RD and log OP

Usage

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getProbScalarRD(atanhrd, logop)

Arguments

atanhrd

arctanh of risk difference

logop

log of odds product

Details

The log OP is defined as log OP = log[(P(y=1|x=0)/P(y=0|x=0))*(P(y=1|x=1)/P(y=0|x=1))]. The inverse hyperbolic tangent function arctanh is defined as arctanh(z) = [log(1+z) - log(1-z)] / 2.

Value

a vector (P(y=1|x=0),P(y=1|x=1))

Examples

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getProbScalarRD(0,0)

set.seed(0)
logrr = rnorm(10,0,1)
logop = rnorm(10,0,1)
probs = mapply(getProbScalarRD, logrr, logop)
rownames(probs) = c("P(y=1|x=0)","P(y=1|x=1)")
probs

brm documentation built on May 30, 2017, 8:18 a.m.