Hi 
I was looking for some functions in weka through which I can perform polynomial regression on my dataset. I have already performed linear regression which resulted in high bias. Now I plan to incrementally increase degree of polynomial until reaching some acceptable level of bias. Now I am looking some function(s) where I can first test polynomial of degree 2 and so on. 
Thanks.  

AFTAB AKRAM
Doctrate Student 
South China Normal University 
Guangzhou, P.R. China