lodds {RBesT} | R Documentation |
Logit (log-odds) and inverse-logit function.
Description
Calculates the logit (log-odds) and inverse-logit.
Usage
logit(mu)
inv_logit(eta)
Arguments
mu |
A numeric object with probabilies, with values in the in the range [0,1]. Missing values (NAs) are allowed. |
eta |
A numeric object with log-odds values, with values in the range [-Inf,Inf]. Missing values (NAs) are allowed. |
Details
Values of mu equal to 0 or 1 will return -Inf or Inf respectively.
Value
A numeric object of the same type as mu and eta containing the logits or inverse logit of the input values. The logit and inverse transformation equates to
\mbox{logit}(\mu) = \log(\mu/(1-\mu))
\mbox{logit}^{-1}(\eta)= \exp(\eta)/(1 + \exp(\eta)).
Examples
logit(0.2)
inv_logit(-1.386)
[Package RBesT version 1.7-3 Index]