Hi,

I'm running a logistic regression and have been advised to use the following formula to calculae the predicted logit from my variables:

=-3.21+0.015*A2-0.000013*A2*A2+0.035*B2-0.0000037*B2*B2

But my supervisor used dummy variables to calculate this. I know that the 3.21 refers to the constant, and that the second figure in each part of the equation (eg 0.015 and 0.035) refers to the B value for the respective variables, but I don't know where he obtained the third figure (the -0.000013 and -0.0000037).

Can anyone tell me how to obtain the third figure so I can use the formula with my own data?

Thanks