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Scatterplot

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Kiljoong

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Nov 4, 2009, 3:22:49 PM11/4/09
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I am trying to add one vertical and two horizontal lines to a
scatterplot. While it is easy to add a best fit line, there doesn't
seem to be an easy way to add vertical and/or horizontal lines. Any
thoughts?

BEGIN GPL
SOURCE: s = userSource(id("graphdataset"))
DATA: Diff=col(source(s), name("Diff"))
DATA: Read=col(source(s),name("Read"))
GUIDE: axis(dim(1), label("Change from 2007-8"))
GUIDE: axis(dim(2), label("Scale Score"))
ELEMENT: point(position(Diff*Read))
END GPL.

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