Contour Plot overviews how to example data see also
Contour Plot Graph > Contour Plot
In a contour plot, the values for two variables are represented on the x- and y-axes, while the values for a third variable are represented by shaded regions, called contours. A contour plot is like a topographical map in which x-, y-, and z-values are plotted instead of longitude, latitude, and altitude.
Below is an example of a contour plot with a 3D surface plot of the same data for comparison. The lowest z-values are found where C1 and C2 both equal zero. As C1 and C2 move away from zero, the values for C3 increase steadily. This is represented in the contour plot as concentric contours of increasing value, and in the 3D surface plot as an inverted cone.
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Contour Plot |
3D Surface Plot |
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Z variables: Enter one or more columns of z-values. Minitab displays a separate graph for each z-variable.
Y variable: Enter the column of y-values.
X variable: Enter the column of x-values.
