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prop1
2011 Sep 15
1
Where to put tryCatch or similar in a very big for loop
...on study to test variable imputation methods for Cox models using R 2.9.0 and Windows XP. The code I have written (which is rather long) works (if I set nsim = 9) with the following starting values.
>bootrs(nsim=9,lendevdat=1500,lenvaldat=855,ac1=-0.19122,bc1=-0.18355,cc1=-0.51982,cc2=-0.49628,eprop1=0.98,eprop2=0.28,lda=0.003)
I need to run the code 1400 times in total (bootstrap resampling) however, occasionally the random numbers generated lead to a singularity and hence the code crashes as one of the Cox model cannot be fitted (the 10th iteration is the first time this happens).
I've...