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E-value

^ http://edamontology.org/data_1667


A simple floating point number defining the lower or upper limit of an expectation value (E-value).

Synonyms: Expectation value

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data, edam

Created in

beta12orEarlier

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An expectation value (E-Value) is the expected number of observations which are at least as extreme as observations expected to occur by random chance. The E-value describes the number of hits with a given score or better that are expected to occur at random when searching a database of a particular size. It decreases exponentially with the score (S) of a hit. A low E value indicates a more significant score.

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