"Richard Ulrich" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > On Sun, 25 Apr 2004 09:48:28 +0100, "Rod" <[EMAIL PROTECTED]> > wrote: > > > Strictly speaking it is still non-linear because the errors are centred on x > > not e^-x. Probably won't make a big difference though > > > > Aren't the errors centered in Y? > > Isn't X assumed to be measured without error? > (so, e^-x is equally without error.)
Fair point. Would still want to convince myself that these errors could all come from the same normal distribution. If Y is getting big (say instead, we were looking at e^(x)) this may not be true as error is often proportional to Y. > > -- > Rich Ulrich, [EMAIL PROTECTED] > http://www.pitt.edu/~wpilib/index.html . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
