[R] nlysystemfit and loglikelihood values

[Alex Olssen]

Dear R-help,

The documentation for systemfit shows that logLik() can be used to
obtain loglikelihood values from linear systems estimated by
systemfit().
It seems to me that logLik() cannot be used for nlsystemfit().  Does
anyone know of any other packages that might let me obtain the
loglikelihood of a model estimated with nlsystemfit()?

Kind regards,

Alex Olssen