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What is the primary purpose of the Partition node in a modeling effort?

What is the primary purpose of the Partition node in a modeling effort?

A.Divide the data into training and testing data.
B.Increase the proportion of under-represented subgroups within the data.

C.Decrease the proportion of an over-represented subgroup within the data.

D.Allow for equal sampling across subgroups within the data.

Reference:
ftp://public.dhe.ibm.com/software/analytics/spss/documentation/modeler/16.0/en/modeler_nodes_general.pdf


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