Thank you, Dr. Wood, that is very helpful.
Best,
Susan
On Wed, Mar 27, 2019 at 12:10 PM Simon Wood wrote:
> These are a bit of a throwback really, and are not very useful - they
> are reference degrees of freedom used in computing test statistic and
> the p-values, but since the null distribu
These are a bit of a throwback really, and are not very useful - they
are reference degrees of freedom used in computing test statistic and
the p-values, but since the null distributions are non-standard the
reference DoF is not very interpretable.
best,
Simon
On 27/03/2019 13:58, Susan Elia
Hello Group.
Regarding degrees of freedom in GAM models fit by mgcv, I do understand the
estimated df, but what does "ref.df" in the summary output mean?
I didn't see an explanation in Wood (2017) or find it in the function
code. The answer may be on page 222 of
Wood SN. On p-values for smooth
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