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2006 Aug 31
0
periodic spline in glm
I have been trying to find a command similiar to bs or ns to add a
periodic/or cyclical splie term to a regression model in glm.nb
I have been using ns to fit a spline to day of the year (1:365):
glm.nb(CNT ~ WKDY + ns(DY,df=6) + HOLIDAY_FLAG + Trend)
but I think a periodic spline might be more appropriate. Any suggestions
would be appreciated.
best,
Spencer Jones, M.Stat.
NLM Fellow...