Reducing the gap between x-axis line and bar

[Hyun Woo Kim]

Hi all,

webuse auto, clear
hist mpg, freq

gives me a nice histogram and there is no gap between x-axis line and bar, like below.

But,

twoway histogram mpg, freq

gives me the same histogram but some "gap" between x-axis line and bar...

Is there any way to control this gap with "graph" or "twoway" command, not "histogram"? Surely, I played with yscale and ylabel options, but did not work.

I thought someone asked about this already. I tried to find a solution in Statalist, but couldn't find any.

Thanks in advance.

[Scott Merryman]

Add:

  plotregion(margin(zero))

[Hyun Woo Kim]

Scott Merryman, Thank you so much! It works like a charm!