st: predict using glm gamma results in excel

["Samir K.C." <kc@iiasa.ac.at>]

Dear Statalisters,
I ran following line

glm y x, family(gamma) link(power -1.5)

With the results (xb and _cons), how can I predict y for a given x. I 
know how to do it in stata, but I need the formula to run it in 
excel. Please help.
Samir

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