[Gnuplot-info] Hot to distinguish overlapped points?

[only4 <onl...@ka...>]

My problem is that when I have overlapped points, they appear as a single
simple point.

I would like to make visible when there are overlapped points!

The simple (intuitive way) is to plot a bigger point, but how to do that?
Or to little change the color of the point when more points overlap, like
light green for a simgle point, dark green for many points...
...but I really don't have a preference, I only desire that it works!
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