| logit {secr} | R Documentation |
Transform real values to the logit scale.
logit(x) invlogit(y)
x |
vector of numeric values in (0,1) (possibly a probability) |
y |
vector of numeric values |
The logit transformation is defined as logit(x) = log(x/(1–x)) for x in (0,1).
Numeric value on requested scale.
logit is equivalent to qlogis, and invlogit is equivalent to plogis (both R functions in the stats package).
logit and invlogit are used in secr because they are slightly more robust to bad input, and their names are more memorable!
Murray Efford murray.efford@otago.ac.nz
logit(0.5) invlogit(logit(0.2))