Dear R-Users, I wonder what methods are available for modeling interaction of continuous variables. Specifically I am interested in fitting a regression
y ~ f(w) * x where y, x are vectors and f(w) is a smooth function of a continuous parameter w (so it is f() that needs to be estimated). I can further assume that f(w) is positive but I can not take the logarithms as both y and x can be negative. Thanks, Vadim -------------------------------------------------- DISCLAIMER \ This e-mail, and any attachments thereto, is intend ... [[dropped]] ______________________________________________ [EMAIL PROTECTED] mailing list http://www.stat.math.ethz.ch/mailman/listinfo/r-help
