[R] getNodeSet - what am I doing wrong?

[Johannes Graumann]

Hi,

Why is the following retuning a nodset of length 0:

> library(XML)
> test <- xmlTreeParse(
> "http://www.unimod.org/xml/unimod_tables.xml",useInternalNodes=TRUE)
> getNodeSet(test,"//modifications_row")

Thanks for any hint.

Joh