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Data quality

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Data quality

This tag gathers mini classes around one specific topic. Start with the newest post, then use categories and related reading for context.

From overhead, an analyst's hands use an amber magnifying lens over a paper grid on a deep-plum surface; blue hollow-ring markers, truly empty cells, and folded-corner not-applicable cards stay separate while a small AI device waits at the edge.
Development & Tech

Don't Let AI Count Blank Cells as Zero

A blank cell isn't zero. Before AI summarizes a spreadsheet, sort blanks into confirmed zero, unknown, and not applicable, and report the denominator and missing values with every ratio.

about 6 min read ·