1.
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2.
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Select Graph > Contour Plot.
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3.
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4.
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5.
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Select to Fill Areas.
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6.
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Click OK.
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Note: By default, the contour plot uses Delaunay triangulation for generating the contour plot. From the Contour Plot red triangle menu, select Transform > Range Normalized to change the method for calculating the triangulations to a normalized scale ([0,1]) in both X and Y.
7.
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From the Contour Plot red triangle menu, select Show Control Panel.
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The Alpha slider appears.
8.
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Click and move the Alpha slider to the right.
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