The plain-English version
Values that are absent, unknown, invalid, or not collected.
Why it matters
Different reasons for missingness can affect which calculations and conclusions are appropriate.
Let’s make it click
An empty delivery date may mean an order has not shipped, while an absent customer age may mean it was never asked.
Vibe Bro’s heads-up
Replacing every missing number with zero changes the meaning of the data and can distort summaries.
The docs behind it
Documentation links checked .
Editorial review · October 28, 2026
Supported: Distinguishes absent values from zero and makes reasons for missingness explicit; no imputation guarantee is asserted.