note
superfrink
I used [http://www.gnuplot.info/|gnuplot] a while ago because I didn't want to have to deal with the line-drawing logic GD required. (I also haven't used GD in a couple years.) With gnuplot the script just generats a text file and runs gnuplot.<br>
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[http://www.gnuplot.info/demo/finance.html] has some financial graphing using gnuplot.<br>
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There is also [http://code.google.com/p/flot/|flot] that does all the graphing in javascript.
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