[BioC] Webbioc error exprSet vs expressionSet

[Balasubramanian Ganesan]

Dear all
I am  attaching the CGI scripts that we typically use for webbioc on  
a shared computer.
I finally had the guts to upgrade R in our machine after running 2.1  
for a really long time, as it still was facilitating analysis for  
naive users.
I finished completely building R from source and installing all  
required packages to run on our machine successfully.
However we still are a little stuck.
The preprocessing by the aff.cgi script works fine, and I can get  
normalized data out of it.
But when I try to run multtest using multtest.cgi, it brings up an  
error on the web page called "Invalid object class".
After fishing around for a while, I figured that it is because in  
earlier versions the normalized data were stored in a session as an  
"exprSet" object, but now it is stored as an "ExpressionSet" object,  
and hence does not get recognized.
How to resolve this issue?
Any suggestions on what should be tweaked and how are welcome.

Balasubramanian Ganesan
Research Assistant Professor
Center for Integrated BioSystems
Utah State University
4700 Old Main Hill
Logan UT 84322
balag at cc.usu.edu