The GoodnessOfFit global element is the R-squared goodness of fit for a linear regression corresponding to the "R_SQR" StatsValuesEnumType enumeration.
<xs:element name="GoodnessOfFit" type="StatsMeasuredDecimalType" substitutionGroup="NumericCharacteristicStatsValue"><xs:annotation><xs:documentation>The GoodnessOfFit global element is the R-squared goodness of fit for a linear regression corresponding to the "R_SQR" StatsValuesEnumType enumeration.</xs:documentation></xs:annotation></xs:element>