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    Plotting Marginal Effects of an Interaction term in STATA 11.0

    Hi guys, I have an interaction term between two variables = xz = x*z and have run the regression xtreg y x z xz i.year y is also a continuous variable 1.4-23.4 x ranges from 0-142 and z ranges from 0-21.8 (not sure if these ranges help) when running the regression my coefficient...
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    Graphical Interpretation of an Interaction Effect

    Hello, I have included an interaction term in my regression and was hoping to graphically interpret it as my variables are continuous. I found a helpful do file from Golder's paper 'Understanding Interaction Effects' but I tried to do the graph and Stata didn't accept the graphical commands...