| protected.mixML {KinMixLite} | R Documentation |
Protect against numerical errors in maximum likelihood computation
Description
Attempts to catch numerical errors in maximum likelihood computation, by replacing logL values by a default value instead of NaN or other failures
Usage
protected.mixML(mixture, pars, constraints = NULL, phi.eq = FALSE, val = NULL,
trace = FALSE, order.unknowns = TRUE, default=-999999, ...)
Arguments
mixture |
A DNAmixture object. |
pars |
A mixpar parameter used as a starting value for the optimisation. |
constraints |
Equality constraint function as function of an array of parameters. |
phi.eq |
Should the mixture proportions be the same for all traces? Defaults to FALSE. |
val |
Vector of values to be satisfied for the equality constraints. |
trace |
Print the evaluations of the likelihood-function during optimisation? |
order.unknowns |
Should unknown contributors be ordered according to decreasing contributions? Defaults to TRUE. |
... |
Further arguments to be passed on to solnp. |
default |
value of logL to be used if numerical errors are encountered |
Value
A list containing
mle |
The (suggested) MLE. |
lik |
The log of the likelihood (log e). |
as well as the output from the optimisation.
Author(s)
Peter Green (P.J.Green@bristol.ac.uk)