I am running fracpoly to know the scale form of
variable age during stcox procedure.
the table from option compare showed that the best
form is -5 0
after using this option i found that the estimated
coef for age are very large which may point to
colliniarity. any advice
age df Deviance Gain P(term) Powers
Not in model 0 23852.046 -- --
Linear 1 23843.695 0.000 0.004 1
m = 1 2 23836.174 7.521 0.006 3
m = 2 4 23824.681 19.014 0.003 -.5 0
_t Coef. [95% Conf. Interval]
Iage__1 16.5029 10.15198 22.85381
Iage__2 4.537873 2.840908 6.234837
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