[R] Restricted cubic spline function ERROR?: glm(Y~rcs(x,5))

From: Jan Verbesselt <Jan.Verbesselt_at_biw.kuleuven.be>
Date: Mon 02 May 2005 - 18:06:55 EST


Dear all,

Is the restricted cubic spline function working properly in the glm model?

We used glm(y~rcs(x,5), family=binomial) but it seems that for some theoretical reasons the rcs, restricted cubic spline function can not be fitted by a glm function. Is this correct?

Regards,
Jan

((Originally, we used lrm(y~ rcs(x,5)) but we couldn't find how to derive the AIC value of the fitted model. Is there a solution?))



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