Reduce margins in combined plot

[Shouro Dasgupta]

I am trying to combine two plots using the following code. I have attached the generated plot, is it possible to reduce/eliminate the margins at the top and bottom of the plots?

I have tried imargin and graphregion(margin(zero)) but haven't managed to reduce the margins. Thank you!

gr combine tmean_world_2000.gph pmean_world_2000.gph, imargin(b=0 t=0) graphregion(color(white)) iscale(0.75) l1(Impact on Economic Activity (%), size(small)) ///
    title(Figure 1: Impact: 2000, size(small) margin(t+5))

[David Radwin]

Maybe something like this, where you use negative numbers for the top and bottom values of the plotregion option?

twoway function y=x^2, name(a, replace)

twoway function y=1/x, name(b, replace)

graph combine a b, imargin(b=0 t=0) graphregion(color(white)) iscale(0.75) l1(Impact on Economic Activity (%), size(small)) ///
    title(Figure 1: Impact: 2000, size(small) margin(t+5)) plotregion(margin(0 0 -5 -5))

[wbuchanan]

Shouro Dasgupta you can also use the brewscheme package to define a custom scheme file with these properties so you don't need to remember the specific graph options in the future.