Contour Plots

View Multidimensional Relationships in Two Dimensions

The Contour Plot command in the Graph menu constructs contours of a response in a rectangular coordinate system. A contour plot shows a three-dimensional surface in two dimensions. Contours delineate changes in the third dimension.

Here are some of the options available with the Contour platform:

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specify the number of contour levels

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choose to plot contour lines or filled contours

•

show or hide data points

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label contours with response values

•

define and use a custom coloring scheme

Figure 7.1 Examples of Contour Plots

Contents

Example of a Contour Plot

Example Using the Contour Platform

Example of a Contour Plot in Graph Builder

Launch the Contour Plot Platform

The Contour Plot

Contour Plot Platform Options

Fill Areas

Contour Specification

Contour Plot Save Options

Use Formulas for Specifying Contours

Additional Example of Contour Plots