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SOLUTIONS
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BUILT-IN MATHEMATICA SYMBOL
LinkFunction
LinkFunction
is an option for GeneralizedLinearModelFit that specifies the link function for the generalized linear model.
DetailsDetails
- The link function is an invertible function
in the generalized linear model
. - Possible settings for LinkFunction include:
-
Automatic automatically determined "name" named link function g invertible function - The default value Automatic uses the canonical link for the ExponentialFamily associated with the model.
- The canonical link functions are as follows:
-
"LogitLink" 
used for "Binomial" "ReciprocalLink" 
used for "Gamma" "IdentityLink" 
used for "Gaussian" "InverseSquareLink" 
used for "InverseGaussian" "LogLink" 
used for "Poisson" - For
models,
is used by default. - Other common link functions for binomial data include:
-
"ProbitLink" 
"CauchitLink" 
"LogLogLink" 
"LogComplementLink" 
"ComplementaryLogLogLink" 
"OddsPowerLink" 
- Other common link functions for count data include:
-
"NegativeBinomialLink" 
- Other common link functions for positive real-valued data include:
-
"PowerLink" 
- For
,
, and
, the additional parameter
can be given by LinkFunction->{linkname, "LinkParameter"->
}. The parameter
can be any real value for
and
and any positive value for
. - With setting LinkFunction->g, g can be any pure function that is real-valued and invertible on the response domain for the model.
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