Data considerations for Contour Plot

For the graph to represent your data most effectively, consider the following guidelines.

If possible, the x- and y-values should be spaced regularly to form a grid
Usually, the z value is the response that you want to explain or predict and the x and y values are the explanatory variables. Minitab plots response (Z) values at the x-y intersections of the grid, or mesh. If your x- and y- values are not evenly spaced, Minitab must interpolate (estimate) the z-values at the intersections of a regular mesh with the same x- and y-ranges as your data. For more information, go to Mesh.
The sample data should be selected randomly
In statistics, random samples are used to make generalizations, or inferences, about a population. If your data were not collected randomly, your results may not represent the population.
By using this site you agree to the use of cookies for analytics and personalized content.  Read our policy