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2010 Nov 17
1
where are my pspline knots?
Hi All,
I am trying to figure out how to get the position of the knots in a pspline used in a cox model.
my.model = coxph(Surv(agein, ageout, status) ~ pspline(x), mydata) # x being continuous
How do I find out where the knot of the spline are? I would like to know to figure out how many cases are there between each knot.
Best,
Federico
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Federico C. F. Calboli
Department of Epidemiology and Biostatistics
Imperial College, St. Mary...