search for: _ihist_grad_1

Displaying 1 result from an estimated 1 matches for "_ihist_grad_1".

2010 Sep 08
4
coxph and ordinal variables?
...cross the different approximations, with consistent results. The comparison using Efron approximation and ordinal data is is below. Your advice is very much appreciated! Min-Han Apologies below for the slightly malaligned output. STATA output . xi:stcox i.Hist_Grade_4grp, efr i.Hist_Grade_~p _IHist_Grad_1-4 (naturally coded; _IHist_Grad_1 omitted) failure _d: FFR_censor analysis time _t: FFR_month Iteration 0: log likelihood = -1133.369 Iteration 1: log likelihood = -1129.4686 Iteration 2: log likelihood = -1129.3196 Iteration 3: log likelihood = -1129.3191 Refining estima...