As with XY data, Tecplot RS includes tools that allow you to compare grid data sets.
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The method you should use to compare data sets depends on the type of plot you wish to create:
• Using the Compare Toggle This powerful option serves as the primary method for comparing data files. It also allows you to create delta plots. With this option, Tecplot RS plots your data sets in two, three, or four separate frames.
You can use the Compare toggle for both 2D Grid Plots and 3D Grid Plots. To use this option, the data sets must use identical variable names, unless you link the variable names with an alias.
• Creating Delta Files A delta file is a file that can be generated by Tecplot RS that stores only the differences between two data sets. This can be loaded with the original data sets so that the differences can be displayed alongside the original using the Compare toggle.