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ProbitLinkFunctionDerivative2 Method |
First derivative of the Inverse(Double)
function expressed in terms of it's output.
Namespace: Accord.Statistics.Links
Assembly: Accord.Statistics (in Accord.Statistics.dll) Version: 3.8.0
SyntaxRequest Example
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The first derivative of the input value.
Parameters
- y
- Type: SystemDouble
The reverse transformed value.
Return Value
Type: DoubleThe first derivative of the input value.
Implements
ILinkFunctionDerivative2(Double)Remarks
The first derivative of the identity link function in terms
of y = f(x) is given by f'(y) = exp(c - x * x * 0.5)
in which c = -log(sqrt(2*π)
and x =
See Also