So i wanted to use Regress.pro. Usually when we fit a data, we have constant and coefficients. Regress has both. However, there is only error for Coefficients but not for the constant. For example, if we have Y = mX + C, we have errors for both m and C, or Y = m1 X1 + m2 X2 + C and the error for m1, m2 and C. Regress doesnt have error for C. I dont seem to understand why we do not have one. Then i moved to Regress2 hoping for a better fit. However, Regress2 doesnt have constant factor and has been fitting along the lines of Y = mX or Y = m1 X1 + m2 X2. Am i missing something or not understanding it.