Wie erkenne ich, welche Brocken Sweave Code einen Fehler gibt?

Question

Wenn Sweave von emacs-ess ausgeführt werden Fehler mit einem Code Chunk Nummer versehen. Gibt es eine einfache Möglichkeit, unter dem Code Brocken nach Nummer zu navigieren? Ansonsten sind sie schwer zu identifizieren.

Answer 1

I don't use emacs-ess (I use Eclipse/ StatEt) but this shows which code chunks are being processed by label (each code chunk starts with <<label="Some Text"... Does your code chunks include labels ?

Answer 2

In noweb mode in emacs M-n i inserts the chunk and asks for the label. You can navigate between them with M-n g which is very handy with completion packages like ido or icicles. With ido you must use this hack to activate it for all completion-read based functions such as noweb-goto-chunk from above.

Answer 3

Another thing that might help is setting options(error=recover) in your R environment before sweaving. That will give you a chance to investigate the state of things just before an error is thrown.