search for: coxphmodel

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Did you mean: coxph_model
2009 Aug 10
0
survival:: plotting survfit with two predictors
...When I run a model with just morder it is fine and the plot is fine. When I add tmean, the coxph model runs fine but this model will not plot and I receive an error message. Someone posting back in April 2009 received a similar error in R2.9.0 (which I am using also) when running predict(coxphmodel,newdata=expand.grid()). This code worked for them in R2.8.1 and they thought there might be a bug. I ran my code in R2.6.2 and I did not have any improvement. I suspect it is not a bug but rather a problem with my code. I have not been able to find any other solutions in the achieve and I w...