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developerWorks: Data Visualization Using Perl/Tk

Sep 09, 2003, 08:30 (0 Talkback[s])
(Other stories by Philipp K. Janert)

[ Thanks to Idean for this link. ]

"The human eye is incredibly good at recognizing complex behavior and spotting trends and patterns in visually displayed data. If any dataset is larger than about a dozen points, a graph is helpful; if the dataset exceeds a few thousand points, a graph becomes a necessity.

"For simple x-y plots, gnuplot is often the first choice. For more complicated problems you can use xmgrace and other plotting tools. However, most simple curve plotters are insufficient for plotting two-dimensional data or for exerting detailed control over a complicated graph. Examples of complicated graphs include specialized bar-and-whiskers plots, time-series with sophisticated error bars, color encodings and density plots, and many other possibilities.

"This is where Perl/Tk shines. Chances are, you're already using Perl for data manipulation and extraction. Perl/Tk provides Perl bindings for the Tk GUI toolset and is possibly one of the easiest-to-use widget sets around..."

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