Are you sure you want to get a histogram with >60000 bars? Even with one-pixel wide bars this would fill a very big space. You might be able to do that with Gnuplot
. CPAN has an interface to it: Chart::Gnuplot
. See also ISBN 0380756668
If what you really want to get is a histogram with a much smaller number of bars, you'd have to insert some sort of aggregation.
You could add the values of 1000 adjacent keys (numerically sorted) into a new bucket each, say, and plot the accumulated values.
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