power transformation

a class of transformations used to make the distribution of values on a variable more closely resemble that of a normal distribution and have more stable variance. In this approach, the obtained values are raised to some exponential quantity (e.g., squared), which preserves their original order. The Box–Cox transformation is an example of a power transformation.

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Psychology term of the day

May 9th 2024

node of Ranvier

any of successive regularly spaced gaps in the myelin sheath surrounding an axon. The gaps permit the exchange of ions across the plasma membrane at those points, allowing the nerve impulse to leap from one node to the next in so-called saltatory conduction along the axon. [Louis A. Ranvier (1835–1922), French pathologist]