I figure one ought to be able to do this with GD Plot.

I've never heard of GD::PLot? Perhaps you mean GD::Graph?

Assuming you do, you might look at GD::Graph::boxplot which might be sufficient for your purpose.

If not, the source code will serve as an example for writing your own.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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In reply to Re: GD Plot Confidence Intervals by BrowserUk
in thread GD Plot Confidence Intervals by cormanaz

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