Dear All I would like to know how can I call user defined R function from JRI. I stored my function (UCS) in the working directory and I load that function into the program using Rengine re=*new* Rengine(args, *false*, *null*); re.eval("source('UCS')") * *But *re.eval("UCS()")*, is not working. How can I solve this problem. Thanks in advanced. *Kind Regards* *W. Mathew* [[alternative HTML version deleted]]