Hi,

I run this four-way interaction model in Stata 14:

xtreg Y c.X1##c.X2##c.X3##X4 Controls i.country i.year,r

Then, I type the following:

margins, dydx(X1) at (X2=(0(0.1)1) X3=(0(0.1)1) X4=(0 1)) saving (predictions,replace)

How can I get the "twoway contour" to view the results for only significant average marginal effects of X1 on Y conditional on X2 and X3 when X4 equals 0 and 1 respectively?

Best,

Lütfi