logit#
- scikitplot.experimental._cy_experimental.logit(x0)#
Compute the logit (inverse sigmoid) of a scalar input.
The logit function transforms a probability in the interval (0, 1) into a real-valued number. It is defined as:
\[\operatorname{logit}(x) = \log\left(\frac{x}{1 - x}\right)\]This function is commonly used in logistic regression and other probabilistic models.
- Parameters:
- x0dfg_number_t
Scalar input value in the range (0, 1). Typically a
float
,double
, orlong double
.
- Returns:
- dfg_number_t
The logit of the input value, returned with the same type as
x0
.
Notes
The input must be strictly within the interval (0, 1) to avoid mathematical domain errors (e.g., division by zero or log of zero).
Added in version 0.3.9.
Examples
>>> logit(0.5) 0.0
>>> logit(0.8) 1.3862943611198906