"Helen" <[EMAIL PROTECTED]> wrote in message amdkkm$9lf$[EMAIL PROTECTED]">news:amdkkm$9lf$[EMAIL PROTECTED]... > Hi there > > I have two random vector X (X1,X2,...,Xn) and Y (Y1,Y2,...,Yn) > I know there are correlated, now I have already known pdf of X, > what kind of ways could I get the pdf of Y? > And to access this aim, what kind of other information( maybe > covariance matrix etc.) should I know? > I am now building a model for my research, so I wanna get some clue > about that. > > Thanks a lot! > >
Plot the data. You could also group the X-values, then look at the distribution of the Y-values when X is between Xa and Xb, then look at the Y-values corresponding to X-values between Xb and Xc, etc. Hopefully some pattern will be evident. Cheers -- Alan Miller http://users.bigpond.net.au/amiller Retired Statistician . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
