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Home Features of DataLab Tools Creating Cross Terms | ||||||
See also: Regular Raster of Variables
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Creating Cross Terms
When analysing factorial designs or when establishing regression models second order cross terms should be included to allow for interactions of the independent variables. The command Tools/Create Cross Terms... calculates all second and third order cross terms of a set of selected variables and appends them to the matrix or stores them in the matrix clipboard. The following table shows as an example the resulting cross terms of a factorial design with four variables:
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