[R] Error in if (n > 0)

[Rich Shepard]

On Wed, 22 Aug 2012, David Winsemius wrote:

> It is not saying there are zero values for concentration.... it is saying 
> there are groups with zero elements:

   Thank you very much, David.

>> table(cu.t$ceneq1, cu.t$era)
>
>       Mining Pre-mining
> FALSE    723          0
> TRUE     183          9

   That's interesting. I did not realize that cenboxplot() (or cenros) cannot
accommodate only censored data in one era. Sigh. I'll work around it.

Regards,

Rich