in reply to Perl module for chart drawing?

Maybe rrdtool is something you could use. (This was my first idea, as I read your message.)

There are also some Modules available at CPAN for using rrd.

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Re^2: Perl module for chart drawing?
by gwadej (Chaplain) on Dec 19, 2008 at 18:16 UTC

    If you decide to use rrdtool, make certain to check out Alex van den Bogaerdt's tutorials.

    RRDtool does not quite work the way people expect and these explanations do a good job of preparing you to expect the data you will get out of it. I've just recently been through this.

    G. Wade