Remove gaps between the y-axis first or last ticks and horizontal frames of a box plot

[Alireza Mahdavi]

Hi Stata box plot experts;

I am sketching a box plot using Stata. These are my codes for y-axis labels and scales

yscale(range(0 100))
ylabel(0 (20) 100 , angle(horizontal) nogrid tpos(centre))

What I see is that (unlike two-way graphs) there is a small gap between the first tick, 0, and the lower horizontal frame of the graph inside (or between the last tick, 100, and the upper horizontal frame of the inside of the graph).

Do you have an idea of how I can remove these small gaps?

Thanks

[Maarten Buis]

You could add the option plotregion(margin(none))