Function used in the proLik function to produce a profile likelihood for a variance component

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Description

Given a model object from asreml and a range of estimates of the parameter, the function will supply the likelihood ratio test statistic for the comparison of the full model to one where the parameter of interest is constrained.

Usage

1
constrainFun(parameter.val, full, fm2, comp)

Arguments

parameter.val

a value for which the log Likelihood of a model is to be calculated

full

the full model asreml object

fm2

starting values for the full model

comp

which variance component to constrain

Details

Used internally in the proLik function

Author(s)

matthewwolak@gmail.com

See Also

See Also proLik