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logit |
(function for equations) |
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Usage: |
logit (p) |
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Definition: |
log (p / (1 - p)) |
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Required: |
0 < p < 1 |
logit is also known as "log odds".
This is the inverse of the logistic function (also known as "expit" or "sigmoid")
It approaches negative infinity as p approaches 0, and positive infinity as p approaches 1.
See also logistic.
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Example: |
logit (0.5) returns 0 logit (0.75) returns 1.0986123 |