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var2level5
2005 Jun 23
0
Error in stepAIC function using a survival model
...is ouputted. But when running an additive model with
many more variables, I get something to the following effect:
coef exp(coef) se(coef) z p
var1Unknown 0.000 1.00e+00 0.0000 NaN NaN
varlevel2 -3.242 3.91e-02 2.5701 -1.262 2.1e-01
var2level3 4.730 1.13e+02 3.7318 1.267 2.1e-01
varr2level4 0.314 1.37e+00 2.9936 0.105 9.2e-01
var2level5 0.000 1.00e+00 0.0000 NaN NaN
This is just cut from the output. Even though it seems the data I am working
with is not the best, I am still confused as to why the stepAI...