Example of a 3D wireframe plotmain topics interpreting results session command see also
Example of a 3D wireframe plotYour company manufactures frozen foods and you need to determine the optimal time and temperature for reheating a new frozen entree. You reheat samples at a number of different times and temperatures, then have trained judges rate each for overall quality on a scale of 0 (not enjoyable) - 10 (most enjoyable). Create a 3D wireframe plot with symbols to illustrate the average quality score for each sample.
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Create a 3D wireframe plot 1 Open the worksheet REHEAT.MTW. 2 Choose Graph > 3D Surface Plot. 3 Choose Wireframe, then click OK. 4 In Z variable, enter Quality. In Y variable, enter Time. In X variable, enter Temp. 5 Click Data View. Under Data Display, check Symbols. 6 Click OK in each dialog box. |
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Reheating at the shorter time intervals results in under-cooked product
and low quality scores. However, reheating at the longest intervals combined
with the highest temperatures also results in low scores because the food
becomes over-cooked. The optimal settings appear to be between 400
Adding symbols to the wireframe illustrates the actual data values. Because your data form a regular mesh (6 regularly spaced temperature settings and 8 regularly spaced time settings), Minitab uses that mesh as the wireframe for the plot.
Rotating the graph to view the surface from different angles can help you visualize the peaks and valleys of the surface.
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Rotate the plot 1 If the 3D Graph Tools toolbar is not visible, choose Tools > Toolbars > 3D Graph Tools. 2 Click and hold the |
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Rotating the graph helps accentuate the ridge of high z-values centered at about Time 35 and Temp 425.
Additional examples that help visualize these data include:
button until the graph has rotated about 25