drill down and roll up

How can I build a cube using Knime? In other words, How can make drilling down and rolling up grouping over several categorical variables?

In KNIME this is pivot and unpivot. You can use the unpivot node to create your long skinny table, and then pivot it into any dimensions you need for reporting.

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It doesn’t make the + and - sign

I’m afraid KNIME is not a presentation level but analytical tool. What you expect requires special indexing that is not part of KNIME.

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