st: Gap between lines in dot plot

[Friedrich Huebler <fhuebler@gmail.com>]

How can the lines in a dot plot with over() be moved closer together?
The gap() option has no effect.

. sysuse auto
. graph dot mpg turn, over(rep78) name(dot1)
. graph dot mpg turn, over(rep78, gap(*.5)) name(dot2)

I expected the lines in the second graph to be closer together but
both graphs look the same.

Friedrich
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