Greg2000 is implemented as an Add-In to Excel2000. The new package substantially increases the capabilities of both earlier Greg stand-alone programs and Excel. What Greg provides that Excel lacks are the ability to operate on a multi-dimensional data structure, to always handle missing values correctly, and to create well-labeled tables and plots in different formats, with plots created as .plt files. What Excel provides that Greg lacks are the ability to easily edit individual data points, to do complicated transforms using data values from other sets of data, to hold multiple sets of data as separate sheets in the same file, and to reformat and print tables in a myriad of ways.

Documentation
Greg2000 Manual

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