Processes | Copy Number | Variables Defining Blocks

Variables Defining Blocks
Specify variables whose levels define blocks corresponding to a single random effect . Observations within the same block are assumed to be correlated.
To Specify Variables Defining Blocks:
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The Available Variables field is populated with variables from the specified data set.
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Left-click a single variable, or hold down Ctrl while left-clicking multiple variables, from the Available Variables field.
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Click to add the selected variable(s) to the Variables Defining Blocks field.