Looking for real-life XML publish/subscribe applications

Hello everyone,

I have one question about the real-life applications of XML-based publish/subscribe system in which the published messages are in XML format. Can I find existing such applications? I want to do some statistical work for such application. Please give me some advices.

Thanks.

Hello everyone,

I have one question about the real-life applications of XML-based publish/subscribe system in which the published messages are in XML format. Can I find existing such applications? I want to do some statistical work for such application. Please give me some advices.

Thanks.
there are some package for R:

http://cran.r-project.org/
http://www.omegahat.org/RSXML/

best regards