Difference between revisions of "Logit"

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''Built-in function new to [[Analytica 4.5]].  Before that, supplied as a function in the '''Generalized Regression''' library.''
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= Logit(p) =
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The [[Logit]] function is equal to
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:<math>Logit(p) = \ln\left( p\over{1-p} \right)</math>
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where <math>0<p<1</math>.
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:[[image:logit.png]]
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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.
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= See Also =
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* [[Sigmoid]](x)
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* [[LogisticRegression]]

Revision as of 17:58, 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].

File:Logit.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.

See Also

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