https://doi.org/10.1351/goldbook.10055
Data having two or more variables per object.
Note: The measurements results are often of the same kind of quantity.
Examples:
- Absorbances measured at \(\pu{101}\) wavelengths in the range \(\pu{200 nm}\) to \(\pu{400 nm}\).
- Mass fractions of \(\pu{10}\) elements measured by ICP-MS.