At this point I don't care how it is done. I have tried to use
PHP/SWF Charts located here:
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and
Open Flash Chart 2 located here:
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..but have gotten neither to work.
JPGraph looks promising as well.
What I need is a bell shaped curve grqphed of test questions from an exam. The value is called a discriminator and can range anywhere from negative .5 to positive .9
The exam itself would be around 100 questions or more. Each question has a dicriminator value that falls somewhere in that range.
The x axis would be the ranges broken up from -.49 to -.40, -.39 to -.30, -.29 to -.20, -.19 to -.10, -.09 to .0 and then .0 to .09, .10 to .19, .20 to .29, .30 to .39, .40 to .49
The Y axis would be the number of question that fall into each range.
PM me if your interested in doing this. I could afford a couple hours work.
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