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Thank you!! I have tried it! It works. But again there is a problem of heteroscedasticity because of which I need to use WLS. I want to use inverse of variance of residuals as weights. However, I am little confused as to how to do it. Can you help me in this? I am using version 6 of E Views.

Thank you so much!! My regression is similar and writing the equation in this way worked for me.

Hi!! I did not find my answer in the link because it is specific. I am typing the equation in the EViews 6 as follows: Log Y c F*(1-exp⁡(-r×Ti ))/r X2 X3 X4 The parameter "r" is unknown to me and the non-linear regression result should indicate me what is the value of "r". When I...

Hi!! I need help on running a non-linear least squares regression. The equation I have is as follows: Log Y= α+β1 X1*X2+ β2 X3+⋯+ βn Xn+εi where, X1=(1-exp⁡(-r×Ti ))*(1/r) As you can see that one of the independent variables (i.e. X1) is non linear. Besides, it has been interacted with another indep...