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In daily use at ARCED Foundation.

ARCED Foundation cleans its surveys with DataFlow. It grew out of their own Stata workflow, arceddataflow, so switching changed the tool, not the results.

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The same results as their Stata workflow

On the reference data, DataFlow's duplicate and outlier checks flag exactly what arceddataflow flags. That comparison runs as a test with every change to DataFlow.

arceddataflow on GitHub

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