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In this sense, we can define the various ''ways'' of data to analyze:
* ''One-way data'' is a [[vector]]{{dn|date=December 2013}}, with a single data value for each discrete or continuous value of the single dimension.
* ''Two-way data'' is a [[matrix]], with a single data value for each discrete or continuous value of two separate dimensions; a [[spreadsheet]] can be used to visualize such data in the case of discrete dimensions.
* ''Three-way data'' can be viewed as a stack of matrices (or similarly, as a workbook of multiple [[spreadsheet]]s), adding a third dimension. Such data might represent the temperature at different locations (two-way data) sampled over different times (the third dimension, leading to three-way data)
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