
  I'd appreciate some tips, I'm  making a simple mistake   trying to
extract elements from a list of fit objects.

  The following command works,  coef( cph.list[[1]] )  ,.... coef(
cph.list[[3]] ) and so forth.  These  extract regression coefficients
from the appropriate list element. 

  When I try to run this inside  a for loop, or an lapply
(lapply(cph.list,coef))  I get this error message


   > for (ii in (1:22)){
+  cat(ii,fill=T) 
+   print(coef( cph.list[[ii]] ))
+ 
+ }
1
Error in object$coefficients : $ operator is invalid for atomic vectors

Suggestions appreciated. 
Thanks in advance.




    Chris Barker, Ph.D.
  Statistical Consultant


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