[R] Error: evaluation nested too deeply: infinite recursion / options(expressions=)?

[Aarti Dahiya]

I am getting this error:- Error: evaluation nested too deeply: infinite 
recursion / options(expressions=)? The reason is probbaly because I am 
calling methods within methods.

I read related posts.  It said the solution is to set  options(expressions = 
1000). I wanted to know where in my code or system to set 
options(expressions = 1000)?

Thanks.

Aarti