There's rrdtool. It will create log scaled graphs, but it's a bit more than a graphing tool. It does come with perl bindings.

Not knowing exactly what you are doing, I'm not sure if the datastore part of rrdtool is a help or hinderance in this case.

In reply to Re: Module for generating log scaled graphs by kschwab
in thread Module for generating log scaled graphs by Coyote

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