Difference between revisions of "Coefficient of determination"

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Sometimes known as '''coeff of determination''', the coefficient of determination represent the goodness of fit for a polynomial.<ref>SEDD Specification 5.0 http://www.epa.gov/superfund/programs/clp/seddspec5.htm</ref>
The '''coefficient of determination''', typically expressed as ''R''<sup>2</sup> and as defined by the [[United States Environmental Protection Agency]] via its [[Staged Electronic Data Deliverable|SEDD Specification]] Version 5.2, "is the proportion of variability in a dataset that is accounted for by a statistical model." The EPA adds that "there is no consensus about the exact definition of ''R''<sup>2</sup>; however, it is generally referred to as the 'goodness of fit' for a polynomial equation."<ref name="SEDD5.2_19">{{cite web |url=https://www.epa.gov/sites/default/files/2019-05/documents/sedd_spec_v5-2-march_2019_508.pdf |format=PDF |title=Appendix A. Data Element Dictionary (DED) |work=SEDD Specification Version 5.2 |author=U.S. Environmental Protection Agency |date=March 2019 |accessdate=22 September 2022}}</ref>


==References==
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[[Category:Testing terminology]]

Latest revision as of 20:34, 22 September 2022

The coefficient of determination, typically expressed as R2 and as defined by the United States Environmental Protection Agency via its SEDD Specification Version 5.2, "is the proportion of variability in a dataset that is accounted for by a statistical model." The EPA adds that "there is no consensus about the exact definition of R2; however, it is generally referred to as the 'goodness of fit' for a polynomial equation."[1]

References

  1. U.S. Environmental Protection Agency (March 2019). "Appendix A. Data Element Dictionary (DED)" (PDF). SEDD Specification Version 5.2. https://www.epa.gov/sites/default/files/2019-05/documents/sedd_spec_v5-2-march_2019_508.pdf. Retrieved 22 September 2022.