Does anyone know whether it is easy to write your own indicators that does some more complicated statistical analysis ( is it doable in Easylanguage?) and then put that in an automated trading software package(commercially available ones)? Is there any good auto-trading package out there that allows that? Or it is better (and not too much more work) to just write a new automated trading algorithm (in C++?). How complicated will the program be? Are there any source codes that one can start with and modify? Thanks a lot for any inputs.