Chia C Chong <[EMAIL PROTECTED]> wrote in message a5d38d$63e$[EMAIL PROTECTED]">news:a5d38d$63e$[EMAIL PROTECTED]... > > > "Glen" <[EMAIL PROTECTED]> wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Do you want to make any assumptions about the form of the conditional, > > or the joint, or any of the marginals? > > Well, the X & Y are dependent and hence there are being descibed by a joint > PDF.
This much is clear. > I am not sure what other assumption I can make though.. I merely though you may have domain specific knowledge of the variables and their likely relationships which might inform the choice a bit (cut down the space of possibilities). Can you at least indicate whether any of them are restricted to be positive? Glen ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at http://jse.stat.ncsu.edu/ =================================================================