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larv
2012 Jun 21
2
MGCV: Use of irls.reg option
Hi,
In the help files in the ?mgcv package for the gam.control() function,
there is an option irls.reg. The help files describe this option as:
For most models this should be 0. The iteratively re-weighted least squares
method by which GAMs are fitted can fail to converge in some circumstances.
For example, data with many zeroes can cause problems in a model with a log
link, because a mean of