On 2/14/08, Felix Andrews <[EMAIL PROTECTED]> wrote:
> You can tell Lattice to stop when an error occurs, like this:
>
> lattice.options(panel.error="stop")
> xyplot(1:10 ~ 1:10, panel=function(...) stop("foo"))
> # -> Error in panel(x = 1:10, y = 1:10) : foo
>
> That is a little more informative than the default "panel.error",
> because it tells you the conditionCall as well as the
> conditionMessage.
>
> But unfortunately, traceback() will still not work as you expect, it
> will say something unhelpful about tryCatch() inside print.trellis().
> As far as I know there is no way to recover the call stack from an
> error once it has been caught by tryCatch. (I would be very happy to
> be proved wrong...)
Right, and I've also thought that this was a bad thing. I'll see if I
can figure out a way to restore traceback functionality. If all else
fails, I'll just another option that disables the tryCatch mechanism.
-Deepayan
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