New in: | Modified in: | Obsolete in:
1.0
1.2.4
Wolfram Language Paclet Repository
Community-contributed installable additions to the Wolfram Language
Categorization
Keywords
Syntax Templates
MixedEffectsFamily
MixedEffectsFamily[]
lists available core and advanced families.
MixedEffectsFamily[name]
returns a validated family Association.
MixedEffectsFamily[association]
sets family-specific size, precision, scale, or degrees-of-freedom parameters.
constructs validated response-family definitions for generalized mixed models.
A family definition contains normalized log density, support, variance, link, derivatives, mean semantics, simulation metadata, and dispersion parameterization.
NegativeBinomial2 uses Size equal to glmmTMB theta and reciprocal to the common statsmodels alpha convention.
ZeroInflatedFamily and HurdleFamily wrap supported count families and preserve normalized likelihoods.
Invalid mixture probabilities, nonpositive dispersion parameters, and unsupported links return Failure rather than silently changing family.
The following options can be given:
LinkFunction | Automatic | Use the documented family default or a supported explicit link. |
See Also
GeneralizedMixedEffectsModelFit
▪
MixedEffectsModel
Related Guides
MMA MixedEffects
Related Links
ZeroInflatedFamily
▪
HurdleFamily
Examples Initialization
Needs["MarcoThiel`MMAMixedEffects`"];
Examples | MoreExamples⊳ |
Compare mean-variance relationships represented by three families:
Plotmu,mu+,0.25`,{mu,0.05`,8},PlotLegends{"Poisson","NegativeBinomial2","Gamma"}
2
mu
2.5`
2
mu
 |
|
Inspect the explicit NB2 parameter convention:
KeyTake[MixedEffectsFamily[Association["Family""NegativeBinomial2","Size"2.5`]],{"Family","Parameters","WeightInterpretation","OffsetScale"}]
FamilyNegativeBinomial2,ParametersSize2.5,WeightInterpretationFrequency,OffsetScaleLink
More Examples
Properties & Relations
Inspect parameter metadata:
KeyTake[MixedEffectsFamily[Association["Family""NegativeBinomial2","Size"2.5`]],{"Family","Parameters","WeightInterpretation","OffsetScale"}]
Parameter conventions used during fitting.
Possible Issues
Reject an invalid probability:
ZeroInflatedFamily["Poisson",1.2`]
Failure[InvalidZeroProbability,...].