Plots in Tecplot 360 EX rely on the datasets attached to each frame. You can modify, create, transform, interpolate, duplicate, and delete the data in the current dataset using the Data menu. You can also use the data operation capabilities of Tecplot 360 EX to create plots of analytical functions. By using layout files, macros, and/or equation files, you can create complex data operations that can be repeated on different datasets.
Changes to the dataset within Tecplot 360 EX do not affect the original data file(s). You can save the modified data by choosing Write Data from the File menu. When you save a layout file, a journal of data operations is saved and those operations are repeated when the layout file is read at a later time. If the data in the file has changed, or the data file is overwritten with new data, the operations are applied to the new data. Alternatively, any datasets that have been modified are also saved to data files (see Section 23 - 1 “Layout Files, Layout Package Files, Stylesheets” for details).