
Hi Elk,
Thanks for the input.  Somehow, I got entangled with which.max.  I should
have used max. 
lapply(list4,function(x) max(x[[1]]$coconut))
[[1]]
[1] 6

[[2]]
[1] 18

[[3]]
[1] 9
 max(unlist(lapply(list4,function(x) max(x[[1]]$coconut))))
#[1] 18
A.K.









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