Difference between revisions of "Logit"

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The inverse of the [[Logit]] function is <code>[[Sigmoid]](x)</code> (before [[Analytica 4.5]], the function [[InvLogit]] was used, defined in the '''Generalized Regression'' library). The logit function is sometimes called the log-odds function.
 
The inverse of the [[Logit]] function is <code>[[Sigmoid]](x)</code> (before [[Analytica 4.5]], the function [[InvLogit]] was used, defined in the '''Generalized Regression'' library). The logit function is sometimes called the log-odds function.
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= Library =
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Advanced Math Functions
  
 
= See Also =
 
= See Also =

Revision as of 18:16, 14 January 2013


Built-in function new to Analytica 4.5. Before that, supplied as a function in the Generalized Regression library.

Logit(p)

The Logit function is equal to

[math]\displaystyle{ Logit(p) = \ln\left( p\over{1-p} \right) }[/math]

where [math]\displaystyle{ 0\lt p\lt 1 }[/math].

LogitGraph.png

The inverse of the Logit function is Sigmoid(x) (before Analytica 4.5, the function InvLogit was used, defined in the 'Generalized Regression library). The logit function is sometimes called the log-odds function.

Library

Advanced Math Functions

See Also

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